Journal of the Australian Ceramic Society最新文献

{"title":"Assessment of mechanical performance of Al2O3 ceramic honeycomb sandwich structures produced with SLA 3D-printing regarding unpolymerized slurry removal strategy","authors":"Betül Kafkaslıoğlu Yıldız","doi":"10.1007/s41779-024-01021-x","DOIUrl":"10.1007/s41779-024-01021-x","url":null,"abstract":"<div><p>Al₂O₃ ceramic honeycomb sandwich bars with a hexagonal core were manufactured through SLA 3D-printing to analyze the impact of hole placement, designed for the removal of uncured slurry, on the bending strength of the samples. Several holes were placed specifically on the samples in the design in two different ways. In the initial design, the holes were placed on the honeycomb sandwich structure’s upper and lower face-sheets. In the second design, the holes were positioned in the direction of the sample thickness, in the lateral walls. The moment of inertia values for the honeycomb structures were calculated with the help of experimental elastic modulus results, and true bending strength was determined according to these results. Nominal strength values were found using the common three-point bending formula. The true bending strength value of Al₂O₃ with lateral holes was 73% higher than Al₂O₃ with holes on face-sheets, while the nominal bending strength was 79% higher. Al₂O₃ samples with holes on face-sheets exhibited a significantly higher failure index compared with both the bulk samples and the Al₂O₃ samples with lateral holes. The holes on the face-sheets reduced the cross-sectional area of the tensile surface and contributed to an increase in stresses due to the stress concentration effect. The Al₂O₃ samples with lateral holes provided a great advantage of specific strength, reaching an average value of 65% above the specific strength of the bulk samples.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 4","pages":"1199 - 1208"},"PeriodicalIF":1.8,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-024-01021-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140665993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating La2O3-enriched glass compositions: thermal, optical, structural properties and Gamma-Ray shielding efficiency","authors":"Hosam M. Gomaa,&nbsp;H. A. Saudi,&nbsp;A. S. Algendy,&nbsp;Nouf. Almousa,&nbsp;M. I. Sayyed","doi":"10.1007/s41779-024-01017-7","DOIUrl":"10.1007/s41779-024-01017-7","url":null,"abstract":"<div><p>This study involves the investigation of the effect of the replacement of B₂O₃ with La₂O₃ on the properties of the multi-component lead Borovanadate glass. Five samples were prepared using the fast-quenching method according to the chemical formula (43-x) mole % B₂O₃ - x mole % La₂O₃- 10 mol % V₂O₅-12.5 mol % CaO-12.5 mol % Li₂O -22 mol %PbO, where x = 0, 1, 2, 3, and 5 mol %. The amorphous character of the synthesized samples was confirmed via Fourier transform infrared and X-ray diffraction. XRD patterns suggest a lack of long-range organized crystalline structure, but FTIR reveals various structural unit blocks. On the other side, the increment of La₂O₃ content caused a proportional increase in the glasses’ bulk density and molar volume. UV analysis revealed that the sample with 5 mol % La₂O₃ had superior absorption properties compared to the other samples. All the samples were found to be effective in transmitting light within the energy range of 3.43–4.07 eV, with the La₂O₃-free sample demonstrating the highest level of light transmission among all the samples. The radiation shielding characteristics of the synthesized glasses were analyzed. The theoretical predictions for the mass attenuation coefficients using WinXCom agreed well with the measured values, providing validation for both the software and the experimental techniques used. This investigation found that La₂O₃ concentration influenced the linear attenuation coefficient (LAC) at a defined energy level, with higher La₂O₃ resulting in higher LAC values. The study also showed that lower energy levels had better linear attenuation compared to higher ones.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 4","pages":"1121 - 1130"},"PeriodicalIF":1.8,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140628421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structure-property relationship and emerging applications of nano- and micro-sized fillers reinforced sialon composites: a review","authors":"Olugbenga Ogunbiyi,&nbsp;Tamba Jamiru,&nbsp;Gbolahan Joseph Adekoya,&nbsp;Azeez Lawan Rominiyi","doi":"10.1007/s41779-024-01020-y","DOIUrl":"10.1007/s41779-024-01020-y","url":null,"abstract":"<div><p>Oxonitridoaluminosilicates (SiAlON) are renowned in advanced ceramics for their exceptional properties: high temperature stability, excellent oxidation resistance, and good wear resistance. Incorporating micro- and nano-sized fillers into SiAlON matrices enhances their properties, yielding SiAlON composite materials with superior mechanical, tribological, and thermal characteristics. This review examines fabrication techniques for producing SiAlON micro/nanocomposites and the structure-property relationships governing their performance across different phase compositions (β, α, X, and O-phases). A comprehensive literature review scrutinized fabrication techniques and structure-property relationships from various databases and scholarly articles. Although SiAlON composites with micro/nano inclusions hold promise across applications, understanding their fabrication processes, structure-property relationships, and potential applications in different fields is crucial. The review highlights diverse fabrication techniques for SiAlON micro/nanocomposites and provides insights into their structure-property relationships. Additionally, emerging applications in structural domains, cutting tools, coatings, corrosion protection, solar cells, LEDs, biomedical realms, and filtration membranes are discussed. This review is a valuable resource for researchers and engineers interested in designing SiAlON products tailored for sophisticated applications. It emphasizes understanding fabrication processes and structure-property relationships to unlock SiAlON-based materials' full potential across industries.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 4","pages":"1167 - 1198"},"PeriodicalIF":1.8,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-024-01020-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140628415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combustion synthesis of porous β-SiAlON from aluminum ferrosilicon and aluminosilicate hollow microspheres","authors":"Anton Reger,&nbsp;Konstantin Bolgaru,&nbsp;Alexander Akulinkin,&nbsp;Pavel Vashurkin,&nbsp;Anna Nevmyvaka,&nbsp;Lidiya Skvortsova","doi":"10.1007/s41779-024-01015-9","DOIUrl":"10.1007/s41779-024-01015-9","url":null,"abstract":"<div><p>SiAlON ceramics is a unique material used in various applications. Producing porous SiAlON material from available industrial waste by combustion is of great interest. In this work, a porous SiAlON composite was synthesized by the combustion of a mixture of aluminum ferrosilicon powder and aluminosilicate hollow microspheres in nitrogen. Aluminosilicate hollow microspheres were used as a pore-forming agent. The addition of aluminosilicate hollow microspheres to aluminum ferrosilicon powder increased the total porosity from 34.1 to 90.3%, the open porosity from 16.4 to 88.2%, and the maximum pore size from 53 to 413 μm in the final product. The porosity of the synthesized samples was predominantly open.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 3","pages":"849 - 857"},"PeriodicalIF":1.8,"publicationDate":"2024-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140628710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The immobilizing performance and mechanism of geopolymer and its derivative materials for high-level radionuclides Cs and Sr: a review","authors":"Jiarui Liu,&nbsp;Yidong Xu,&nbsp;Jialei Wang,&nbsp;Wensheng Zhang,&nbsp;Jiayuan Ye,&nbsp;Rui Wang","doi":"10.1007/s41779-024-01018-6","DOIUrl":"10.1007/s41779-024-01018-6","url":null,"abstract":"<div><p>How to properly handle the high-level radionuclides cesium(Cs) and strontium(Sr) generated during the nuclear fuel cycle has become a challenging issue. Geopolymer, a novel aluminosilicate inorganic gel material, can be in-situ converted into zeolite and ceramics, exhibiting excellent immobilization capability for radioactive nuclides. This work provides a comprehensive review of the research on the conversion and synthesis methods of geopolymer into zeolite and ceramics, and conducts a detailed analysis of the performance and mechanisms of geopolymers, geopolymer-zeolite composites, and geopolymer ceramics in the immobilization of Cs and Sr. Through a thorough analysis and summary of existing literature, this study presents the optimal conditions for the conversion of geopolymers into zeolite and proposes improved methods for geopolymer ceramic immobilization of Cs. Furthermore, a comparison and analysis are conducted of the applicability, as well as the advantages and disadvantages of these three solidification matrices in immobilizing Cs and Sr. Finally, the challenges and prospects faced by geopolymer and its derivative materials in the immobilization of high-level radionuclides Cs and Sr are discussed.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 4","pages":"1131 - 1151"},"PeriodicalIF":1.8,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A dual-layer ceramic coating based on silicon carbide and boron oxide on the graphite surface to establish high temperature oxidation resistance","authors":"Babak Alavi,&nbsp;Hossein Aghajani,&nbsp;Hosein Ehtesabi,&nbsp;Mahshid Mandani Marbini,&nbsp;Delaram Mahmoudi","doi":"10.1007/s41779-024-01019-5","DOIUrl":"10.1007/s41779-024-01019-5","url":null,"abstract":"<div><p>In this work, to establish the oxidation resistance for graphite in the air atmosphere with temperatures ranging from 700 to 1000 °C, an innovative multi-component, dual-layer coating was developed. The coating consists of two layers with a total thickness of around 250 μm. The first layer was consisted of B₂O₃ with SiO₂ and ZnO, while the second layer included SiC with silicon as an additive. Through scanning electron microscopy (SEM) images and elemental maps, alongside heat treatment experiments at 1000 °C, which resulted in only a 6% weight loss, it was evident that the coating was effectively applied and performed exceptionally well. Moreover, cyclic heat treatment experiments confirmed the coating’s durability and thermal stress resistance, with minimal weight reduction results. Applying these coatings is uncomplicated, and the materials are readily available, ensuring cost-effectiveness.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 4","pages":"1153 - 1165"},"PeriodicalIF":1.8,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the process of oxidation resistance composite coating on graphite electrode by dipping method","authors":"Ke Rong,&nbsp;Dawei Luo,&nbsp;Jiabao Deng,&nbsp;Jianghua Chen,&nbsp;Zijie Gao","doi":"10.1007/s41779-024-01014-w","DOIUrl":"10.1007/s41779-024-01014-w","url":null,"abstract":"<div><p>Graphite material is a kind of conductive material with excellent thermal shock resistance, is an important strategic mineral resources, widely used in iron and steel smelting, aviation, aerospace and other fields. However, the graphite electrode is easy to be oxidized in the air, resulting in a large amount of graphite electrode loss. In this paper, a new impregnation material is used to prepare graphite electrode oxidation resistance coating, by changing the ratio of raw materials, impregnation times, sintering process and other process parameters to prepare samples, and then oxidation resistance experiment to characterize its antioxidant capacity. The optimum technological parameters of graphite electrode coating obtained in this paper are: The content of antioxidant is Si 4.6%, SiC 5.8%, TiO₂ 6.9%, Al₂O₃ 5.4%, H₃BO₃ 3.7%, carboxymethyl cellulose 2.6%, deionized water 70%, hot impregnation twice, after sintering in nitrogen atmosphere at 400 ℃ for 30 min, In the range of 800 ℃~1200 ℃, the weight loss of the graphite samples with anti-oxidation coating is reduced by 7.3%~11.3%. The coating can protect the anti-oxidation of the graphite matrix well.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 3","pages":"763 - 776"},"PeriodicalIF":1.8,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave-assisted sumac based biocatalyst synthesis for effective hydrogen production","authors":"Gurbet Canpolat","doi":"10.1007/s41779-024-01013-x","DOIUrl":"10.1007/s41779-024-01013-x","url":null,"abstract":"<div><p>Hydrogen (H₂), a renewable energy source with a high energy density and a reputation for being environmentally benign, is being lauded for its potential in various future applications. In the present context, the catalytic methanolysis of sodium borohydride (NaBH₄) is of considerable importance due to its provision of a pathway for the efficient production of hydrogen gas (H₂). The main aim of this research attempt was to assess the viability of utilizing refuse defatted sumac seeds as an unusual precursor in microwave-assisted K₂CO₃ activation to produce a biocatalyst.</p><p>The primary objective that motivated the synthesis of the biocatalyst was to facilitate the generation of hydrogen via the catalytic methanolysis of NaBH₄. With the aim of developing a biocatalyst characterized by enhanced catalytic performance, we conducted an exhaustive investigation of a wide range of experimental parameters. The activation agent-to-sample ratio (IR), impregnation time, microwave power, and irradiation time were among these parameters.</p><p>Significantly enhanced in catalytic activity, the biocatalyst produced under particular conditions achieved a peak hydrogen production efficiency of 10,941 mL min^− 1 g.cat^− 1. In particular, it was determined that the ideal conditions were as follows: 0.5 IR, 24 h of impregnation, 500 W of microwave power, and 10 min of irradiation. This novel strategy not only demonstrates the impressive potential of eco-friendly biocatalysts, but also positions them as a viable alternative material for the sustainable production of hydrogen via NaBH₄ methanolysis.</p><p>Three significant parameters contribute to the value and renewability of this study. The first is that waste is used as the primary material; the second is that the activator is less hazardous than other activators; and the third is that microwave activation is a green chemistry technique.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 3","pages":"681 - 688"},"PeriodicalIF":1.8,"publicationDate":"2024-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s41779-024-01013-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis, structural, optical and experimental gamma-ray shielding properties of molybdenum-trioxide reinforced CRT glasses","authors":"R. Kurtulus,&nbsp;E. Kavaz,&nbsp;T. Kavas,&nbsp;Ghada ALMisned,&nbsp;U. Perişanoğlu,&nbsp;H. O. Tekin","doi":"10.1007/s41779-024-01016-8","DOIUrl":"10.1007/s41779-024-01016-8","url":null,"abstract":"<div><p>While sustainable material systems have become paramount, recycling unused waste cathode ray tubes (CRTs) glass can possess great potential for radiation protection applications. With this motivation, the present study addressed the utilization of waste CRTs in combination with MoO3 towards a glass composition of <i>xMoO</i>_<i>3</i><i>—(100-x)CRTs</i> where <i>x</i> typifies 0, 1, 3, and 5 wt%. The glass samples coded Mo0 to Mo5 were synthesized using a traditional melting technique. After successfully preparing the glass series, some sets of characterization analyses were performed to understand physical, structural, optical, and radiation shielding properties. According to the findings, density increased from 2.92 to 2.96 g/cm³ as MoO₃ was introduced into the glass network. Yet more, all glass samples exhibited an amorphous structure irrespective of varying MoO₃ doping rates. On the other hand, FTIR measurements paved the way for highlighting possible vibrational modes, such as Si–O-Si and Si–O, in the structure. According to the optical properties via UV–Vis, the direct <i>E</i>_<i>g</i> values equaled 1.75, 1.69, 1.65, and 1.61 eV for Mo0 to Mo5, respectively, whereas <i>R</i> values ranged from 2.8534 to 2.9281. For investigating mass attenuation coefficients (MAC), the transmission measurements were performed for 30.9–383 keV photon energy ranges using radioactive source of 133-Ba and Ultra-Ge detector. The correctness of the experimental MAC values were checked with EpiXS program and MCNP codes. It is determined that the highest MAC values changing from 0.5951 cm²/g to 0.1022 cm²/g belong to Mo5 glass for 30.9–383 keV. It is also revealed that with the increasing MoO₃ addition, EABF, EBF, HVL and MFP values of the Mo0-Mo5 glasses dropped and MAC, Z_eff and N_el values enhanced. As a result, MoO₃ substitution has improved the material characteristics of CRTs glasses.</p></div>","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 4","pages":"1103 - 1119"},"PeriodicalIF":1.8,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Structural, dielectric, and magnetic properties of transition metals substituted strontium aluminates for energy storage applications","authors":"Farman Ullah,&nbsp;Pervaiz Ahmad,&nbsp;Mayeen Uddin Khandaker,&nbsp;Mohammed Shahabuddin,&nbsp;Shahid M. Ramay,&nbsp;Murtaza Saleem","doi":"10.1007/s41779-024-01010-0","DOIUrl":"10.1007/s41779-024-01010-0","url":null,"abstract":"","PeriodicalId":673,"journal":{"name":"Journal of the Australian Ceramic Society","volume":"60 3","pages":"1003 - 1003"},"PeriodicalIF":1.8,"publicationDate":"2024-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140748467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}