International Journal of Mechanical and Materials Engineering最新文献

{"title":"How milling parameters influence surface texture and osteoblasts response when manufacturing Ti6Al4V medical parts","authors":"Michela Sanguedolce,&nbsp;Jessica Dal Col,&nbsp;Stefania Ferrisi,&nbsp;Francesco G. Modica,&nbsp;Vito Basile,&nbsp;Giuseppina Ambrogio,&nbsp;Luigino Filice","doi":"10.1186/s40712-025-00253-4","DOIUrl":"10.1186/s40712-025-00253-4","url":null,"abstract":"<div><p>Every manufacturing process alters the state of a surface, endowing it with new attributes that engineers use to enhance the performance of the finished products. When these surfaces come into contact with the human body, they exert specific influences depending on their condition affecting medical device biocompatibility. This study shows how a titanium alloy surface, characterized by standard measurement parameters such as roughness and contact angle, specifically influences the response of osteoblast-like cells in terms of proliferation and morphology. This relationship is quantified by comparing different machine learning techniques. </p><p>More in detail, the impact of the milling process on <i>Ti6Al4V</i> substrates on the growth of the human osteosarcoma cell line MG63 has been investigated. By varying the technological parameters such as the cutting speed and depth and, consequently, the surface condition, the number of cells after a 72-h culture was measured to correlate cell proliferation with the process parameters. Ultimately, it is conceivable that with further research, surfaces could be designed to elicit varying cellular responses by appropriately combining manufacturing processes and their technological parameters.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00253-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143676545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CdS(en) hybrid nanoparticles supported on Mg(OH)2-MgO mixture. Suitable preparation via a one pot synthesis for the photocatalytic H2 production","authors":"Angela Gabriela Romero-Villegas,&nbsp;Sandra Ramírez-Rave,&nbsp;Agileo Hernández-Gordillo,&nbsp;Iván D. Rojas-Montoya,&nbsp;Ricardo Gómez","doi":"10.1186/s40712-025-00248-1","DOIUrl":"10.1186/s40712-025-00248-1","url":null,"abstract":"<div><p>CdS(en)/Mg(OH)₂-MgO photocatalysts were easily synthesized using a <i>one pot synthesis</i>, the resulting materials were obtained with an excellent dispersion of the hybrid CdS(en) on the surface. Their structural, optical, and morphological properties were characterized by X-ray diffraction, UV–vis spectroscopy, FTIR spectroscopy, nitrogen physisorption, and scanning electron microscopy (SEM). These supported materials were used as photocatalysts in the hydrogen evolution reaction (HER), using water as the raw material, and methanol as a sacrificial molecule under visible (blue) light irradiation. CdS(en)/Mg(OH)₂-MgO materials presented high performances in the HER reaction. When Mg(OH)₂-MgO support was obtained by ammonia pre-treatment of MgO, an improvement in the electronic-optical and textural properties was observed, resulting in an enhancement in the H₂ yields. Notably, in comparison to previously reported CdS-supported materials which achieved H₂ production rates of 64–300 μmol/gh, the photocatalysts presented in this study exhibit significantly superior performance. Specifically, CS/Mg5H is almost 5 times more active, producing exceptional H₂ yields while requiring only a small amount of catalyst (50 mg containing just 4.2 wt.% CdS). Furthermore, this remarkable performance is achieved under visible light irradiation using low-intensity 12 W LED lamps.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00248-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143668263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Residual stress of annealed electroless and electrodeposited nickel phosphorous layers incorporated with amorphous boron particles","authors":"N. Omar,&nbsp;F. Köster,&nbsp;F. Hahn,&nbsp;A. Bund","doi":"10.1186/s40712-025-00250-7","DOIUrl":"10.1186/s40712-025-00250-7","url":null,"abstract":"<p>This paper discusses the effects of thermal annealing, the presence of boron and the current density on the residual stress of electroless and electrodeposited nickel phosphorous, NiP, and nickel phosphorous boron, NiPB, and composite coatings. Besides residual stress, the hardness, Young’s moduli, and elastic strain to failure, <span>(frac{H}{E})</span>, were determined via nanoindentation. It is shown that all coatings, independent of their preparation or annealing procedure, possess compressive residual stresses. A pin-on-disc tribometer was used with a load of 3 N without lubricant to determine the friction coefficient and the wear resistance of the layers. Results from wear tests correlate with the calculated <span>(frac{H}{E})</span>, in which coatings with higher <span>(frac{H}{E})</span> have a higher wear resistance. It is shown that annealing of the coatings at 400 °C provides the highest wear resistance except for electroless and electroplated NiP. Lastly, the feasibility of the X-ray diffraction method to determine the residual stress of NiP and NiPB coatings was tested. It was found that NiPB dispersion coatings could not be characterized through this method due to the lack of reflections at high 2θ values. Only the residual stress of Ni{311} could be determined in the case of NiP layer that was heat treated.</p>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00250-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143655327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bismuth oxyiodides: photocatalytic performance, by-products, and degradation pathways","authors":"Andrea Martinez-Topete,&nbsp;Eva Jimenez-Relinque,&nbsp;Frederic Dappozze,&nbsp;Sofia Salli,&nbsp;Aziz Genç,&nbsp;Thomas Slater,&nbsp;Chantal Guillard,&nbsp;Andrea Folli,&nbsp;Marta Castellote","doi":"10.1186/s40712-025-00251-6","DOIUrl":"10.1186/s40712-025-00251-6","url":null,"abstract":"<p>The increasing global demand for environmental remediation strategies has led to significant interest in the development of efficient photocatalysts. Semiconductor photocatalysts, such as titanium dioxide (TiO₂ P25), have been extensively studied for addressing challenges such as water purification and air decontamination. However, TiO₂ P25’s wide band gap restricts its efficacy under visible light, which limits its practical use in real-life applications. Bismuth oxyiodides have emerged as highly promising alternatives due to their narrow band gaps and visible-light responsiveness. In this study, BiOI, Bi₅O₇I, and BiOI/Bi₅O₇I have been synthesized by pH-dependent co-precipitation and hydrothermal methods and evaluated their photocatalytic performance for phenol degradation and nitrogen oxides (NO_x) oxidation. Under visible light irradiation, BiOI-co pH 10 and BiOI/Bi₅O₇I-co pH 12 demonstrated promising phenol degradation rates (≈51%) compared to the TiO₂ P25 benchmark (≈ 11%). In terms of mineralization efficiency, as measured by the total organic carbon (TOC)/phenol ratio (0.6–0.7), Bi₅O₇I-UV, BiOI/Bi₅O₇I-VIS, and TiO₂ P25-UV showed similar capabilities. Only under UV light irradiation did TiO₂ P25 (phenol removal≈100%; NO removal≈86%) surpass the bismuth oxyiodides. Despite showing minimal production of aromatic by-products (e.g., hydroquinone, benzoquinone, and catechol) during phenol degradation, the bismuth oxyiodides exhibited higher NO₂ production compared to TiO₂ P25 during NO_x oxidation. One possible explanation for this phenomenon may be attributed to different ROS-mediated mechanisms present in TiO₂ P25 and bismuth oxyiodide compounds. However, the possibility of significant adsorption of intermediates in solution onto bismuth oxyiodide materials cannot be neglected. Quencher experiments, electron paramagnetic resonance (EPR), and terephthalic acid-fluorescence probe method revealed that hydroxyl radicals (HO·) are not the major oxidant specie in in bismuth oxyiodide-mediated photocatalysis. Using evidence from EPR spectroscopy, a photodegradation pathway, involving singlet oxygen (¹O₂), was proposed. These findings provide valuable insights into the photocatalytic behavior of bismuth oxyiodides and highlights the importance of understanding the mechanisms to optimize their use for environmental applications.</p>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00251-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143638306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Photocurrent generation using ZnO/CuO/Ag heterojunction films","authors":"Joseff Renato Mejia-Bernal,&nbsp;Christian Gómez-Solís,&nbsp;I. Juárez-Ramírez,&nbsp;G. Ortiz-Rabell,&nbsp;L. A. Díaz-Torres","doi":"10.1186/s40712-025-00217-8","DOIUrl":"10.1186/s40712-025-00217-8","url":null,"abstract":"<div><p>The preparation of heterojunctions in semiconductor films has generated great interest in the field of photocatalysis due to the unique physicochemical properties and a special electronic band structure formed. Particularly, in this work, we show the heterojunction synthesis of ZnO/CuO/Ag films deposited on glass substrates. These films were prepared by the sol–gel method coupled with the spin-coating technique, which is an easy, simple, and economical option to prepare films compared to other reported methods. According to the results obtained, the presence of CuO and Ag on the ZnO surface favored the better separation of the photogenerated electron–hole pair, as well as a better visible light absorbance compared to pure ZnO and CuO. The characterization of the films was carried out by X-ray diffraction and scanning electron microscopy techniques to know the structural and morphological parameters, respectively, while through UV–Vis analysis, it was possible to determine the bandgap energy value of the films through the Tau plot. Likewise, by means of photoluminescence analysis, it was possible to observe an improvement in charge transfer, thus avoiding the rapid recombination of the photogenerated electron–hole pair. Finally, photoelectrochemical tests (PEC) for photocurrent generation showed an improvement for the ZnO/CuO/Ag heterojunction film (0.78 mA/cm²), almost five times greater than ZnO (0.15 mA/cm²), respectively, which is caused by the increased electron transport that is linked to the longer lifetime of the charge carriers with an effective separation of the electron–hole pair and a fast diffusion rate.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00217-8","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of mode of metal transfer on corrosion properties of duplex stainless steel welding","authors":"Chintan Bahadursinh Gohil,&nbsp;Sanjay Narhar Soman","doi":"10.1186/s40712-024-00194-4","DOIUrl":"10.1186/s40712-024-00194-4","url":null,"abstract":"<div><p>Gas metal arc welding process used to develop butt welding on 8-mm plates of EN 1.4462 (2205) grade to meet higher productivity and excellent corrosion properties by using the dip or short circuit, globular, and spray modes of metal transfer. General corrosion behavior was determined by potentiodynamic in 0.1%N H₂SO₄ solution, while pitting corrosion susceptibility was studied by cyclic polarization test in 6% FeCl₃ solution. Pitting and crevice corrosion tests were performed as per ASTM G48 method A and B, respectively. The findings demonstrate that the specimen welded with spray transfer mode was found without any pitting on the surface with the lowest weight loss of 0.000005 g/cm² and 0.000109 g/cm² in the pitting and crevice test, respectively. No intermetallic phase was observed in optical microscopy up to 500 × for all modes of metal transfer specimens. The dip transfer mode sample shows the lowest corrosion rate at 2.310 mpy and 37.91 in potentiodynamic and cyclic polarization studies demonstrating very good general corrosion and pitting potential. The highest volume ferrite % was observed in the heat-affected zone than weld and base metal for all samples. However, the dip transfer mode specimen shows the highest % ferrite of 68.21%, 59.37%, and 51.02% in the heat-affected zone and weld and base metal. Spray transfer mode is recommended to weld 8-mm plates for welding joints for welding similar types of applications and testing media.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-024-00194-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143602378","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of EDTA at pH = 7 on oxidized NiMo/Zr-SBA-15 catalysts oriented to hydrodesulfurization processes","authors":"Diego Alejandro García-Ramos,&nbsp;Rebeca Silva-Rodrigo,&nbsp;Amelia Olivas-Sarabia,&nbsp;José Aarón Melo-Banda,&nbsp;Acela López-Benítez,&nbsp;Alfredo Guevara-Lara","doi":"10.1186/s40712-025-00244-5","DOIUrl":"10.1186/s40712-025-00244-5","url":null,"abstract":"<div><p>This study reports the beneficial effect of EDTA insertion at neutral pH on oxidized NiMo catalysts supported on Zr-SBA-15 with a theoretical molar ratio of Zr/Si = 0.07, synthesized by the sol–gel method. The support was impregnated with the precursor solutions of nickel nitrate and ammonium molybdate in order to obtain NiMo bimetallic catalysts with a theoretical molar ratio of Ni/(Ni + Mo) = 0.3. In addition, EDTA was incorporated as a chelating agent during the impregnation step with a theoretical molar ratio of Ni: EDTA = 1:1 adjusting the pH to neutral. The bimetallic catalysts were characterized at each step of the preparation (drying and calcination). XRD, N₂ physisorption, and TEM analyses demonstrated that the incorporation of metals did not considerably affect the mesoporous morphology, as evidenced by the persistence of the support’s characteristic reflections. Both synthesized catalysts demonstrate adsorption–desorption isotherms type IV and H1-type hysteresis characteristic of mesoporous materials with uniform morphology. Likewise, EDTA at neutral pH increased the NiMoE/ZS07 catalyst’s specific surface area near 615 m²/g, 73% more than that of the catalyst without a chelating agent. FTIR analysis suggests the adsorption of nickel nitrate and ammonium molybdate salts and the thermal decomposition of EDTA. UV–Vis DRS and Raman spectroscopy analyses described that the addition of EDTA at neutral pH together with the calcination conditions significantly reduced the support-deposited species interaction and increased the interaction between metals. The use of the material as a hydrodesulfurization catalyst was enhanced by the modification of the oxidation state of the deposited oxidic molybdenum, as reported by XPS spectra analysis.</p><h3>Graphical Abstract</h3><p>Schematic representation of the effect of EDTA at pH = 7 that promotes a significant contribution to the dispersion of Mo species in the oxide phase on the ZS07 support</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00244-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143583436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of titanium on the catalytic activity of Zn–BDC and Cu–BDC thin films in the photoreduction of CO₂","authors":"Espinoza–Tapia Julio César,&nbsp;Hernández–Pérez Isaías,&nbsp;Becerril–Landero Luis Alberto,&nbsp;González–Reyes Leonardo,&nbsp;Huerta–Arcos Lázaro,&nbsp;Barrera–Calva Enrique,&nbsp;Falcony–Guajardo Ciro","doi":"10.1186/s40712-025-00237-4","DOIUrl":"10.1186/s40712-025-00237-4","url":null,"abstract":"<div><p>The present text deals with the study of thin films of metal–organic frameworks (MOF) materials based on Zn–BDC, Cu–BDC, and their modified versions with titanium incorporations at 5 and 10% mol. These materials were synthesized by chemically assisted vapor deposition (AACVD) technique and characterized by various techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, band gap determination, and photoluminescence spectroscopy.</p><p>The results indicated that the incorporation of titanium modifies the structural, optical, and electronic properties of these MOFs, decreasing their band gap and altering their light absorption and emission characteristics. Furthermore, their efficiency as photocatalysts in the photoreduction of CO₂ in an aqueous system was evaluated, using liquid chromatography (HPLC) to analyze the products.</p><p>It was found that Cu–BDC exhibited higher efficiency compared to Zn–BDC, and the incorporation of titanium significantly improved the catalytic activity of both materials. The 10% Ti–Cu–BDC showed the highest efficiency, with a total yield of 344 mmol/L of products and a conversion efficiency of 56.4%. These results suggest that modification of MOFs with titanium is an effective strategy to optimize their performance in CO₂ photoreduction and other environmental and energy applications.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00237-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143570996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrothermally synthesized CuO/NiO composites as a promising photocatalyst for sunlight-driven organic pollutant degradation","authors":"Gudiguntla Ravi,&nbsp;Niranjan Patra","doi":"10.1186/s40712-025-00246-3","DOIUrl":"10.1186/s40712-025-00246-3","url":null,"abstract":"<div><p>This study investigates the synthesis, characterization, and photocatalytic performance of Copper Oxide/Nickel Oxide (CuO/NiO) hybrid composites, produced via a hydrothermal method. X-ray diffraction (XRD) confirmed the successful formation of CuO/NiO hybrids, highlighting distinct peaks indicative of both CuO and NiO phases. Scanning electron microscopy (SEM) displayed well-defined, uniformly distributed particles, while energy-dispersive X-ray spectroscopy (EDX) validated the stoichiometric composition of the hybrids. The photocatalytic efficacy of the CuO/NiO composites was evaluated under sunlight, demonstrating significantly enhanced degradation of methylene blue (MB) dye compared to pure CuO. This improvement is attributed to the synergistic interaction between CuO and NiO, which facilitates efficient organic pollutant breakdown. Our findings suggest that CuO/NiO hybrids are promising candidates for advanced water treatment technologies, offering a sustainable and efficient approach to mitigating organic pollutants using sunlight-driven photocatalysis.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00246-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of residual stress on the flexural strength and microstructure of Al2O3-ZrO2 composites fabricated by different methods","authors":"Hai-Yan Li,&nbsp;Lei Zhang,&nbsp;Xiao-gen Liu,&nbsp;Detian Wan,&nbsp;Yiwang Bao","doi":"10.1186/s40712-025-00216-9","DOIUrl":"10.1186/s40712-025-00216-9","url":null,"abstract":"<div><p>Due to the mismatch of coefficients of thermal expansion between ZrO₂ and Al₂O₃, thermal residual stress would be induced to the Al₂O₃-ZrO₂ composites during the cooling process. However, Al₂O₃-ZrO₂ composites fabricated by different methods have various stress distribution and stress states, which result in different mechanical properties. In this work, the prestressed coating reinforcement method and the particle enhancement method have been carried out to fabricate Al₂O₃-reinforced ZrO₂ composites (the corresponding specimens marked as AcZs pre-stressed ceramics and Al₂O_3,P/ZrO₂ composites), respectively. The effects of residual stress on flexural strength and microstructure were investigated. Results show that, in the AcZs pre-stressed ceramics, the residual compressive stress exists in the coating, while the tensile stress exists in the substrate. However, the residual stress in Al₂O_3,P/ZrO₂ composites is hydrostatic stress because of the isostatic presses on Al₂O₃ particle in all directions. Furthermore, owing to the residual compressive stress in the surface layer could prevent crack propagation, the flexural strength of AcZs pre-stressed ceramics is higher than that of Al₂O_3,P/ZrO₂ composites with different content of Al₂O₃ particle additions. Generally, the prestressed coating reinforcement method is an effective and low-cost way to improve the mechanical strength of brittle materials, which is more suitable for the preparation of ZrO₂ based ceramics with high strength in this work.</p></div>","PeriodicalId":592,"journal":{"name":"International Journal of Mechanical and Materials Engineering","volume":"20 1","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://jmsg.springeropen.com/counter/pdf/10.1186/s40712-025-00216-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}