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Direct ink writing of IR-transparent yttria ceramics
IF 2.9
Open Ceramics Pub Date : 2025-02-15 DOI: 10.1016/j.oceram.2025.100752
Dariia Chernomorets , Alex Sangiorgi , Jan Hostaša
{"title":"Direct ink writing of IR-transparent yttria ceramics","authors":"Dariia Chernomorets ,&nbsp;Alex Sangiorgi ,&nbsp;Jan Hostaša","doi":"10.1016/j.oceram.2025.100752","DOIUrl":"10.1016/j.oceram.2025.100752","url":null,"abstract":"<div><div>In this work, transparent Y<sub>2</sub>O<sub>3</sub> ceramics were obtained by direct ink writing (DIW) followed by vacuum sintering at 1720°C for 32 h. The optimal ink composition was identified as 78 wt.% of solid loading, 1.5 wt.% of Dolapix CE64, 8 wt.% of Pluronic and 5 wt.% of ethylene glycol. The ink exhibits pseudoplastic behaviour and optimal viscoelastic properties for printing. Transparent Y<sub>2</sub>O<sub>3</sub> ceramics were characterized by mostly uniform dense microstructure with the presence of some large defects caused by the printing process. In-line transmittance of the obtained ceramics is 43 % in the range of 3–5 μm.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100752"},"PeriodicalIF":2.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428784","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}
引用次数: 0
Graphene oxide membranes coated on porous ceramic hollow fibers for the removal of pharmaceutical contaminants from wastewater
IF 2.9
Open Ceramics Pub Date : 2025-02-14 DOI: 10.1016/j.oceram.2025.100750
Aline Maria de Jesus Machado Cardoso, Vicelma Luiz Cardoso, Miria Hespanhol Miranda Reis
{"title":"Graphene oxide membranes coated on porous ceramic hollow fibers for the removal of pharmaceutical contaminants from wastewater","authors":"Aline Maria de Jesus Machado Cardoso,&nbsp;Vicelma Luiz Cardoso,&nbsp;Miria Hespanhol Miranda Reis","doi":"10.1016/j.oceram.2025.100750","DOIUrl":"10.1016/j.oceram.2025.100750","url":null,"abstract":"<div><div>The proposal of suitable substrates for the deposition of graphene oxide (GO) membranes is crucial to obtain efficient separation processes. Here we applied ceramic hollow fibers as the substrate for deposition of a thin GO layer. The produced alumina hollow fibers presented the desired asymmetric pore size distribution, with an outer sponge-like layer for a proper GO deposition. The average roughness of the outer surface of the ceramic hollow fiber was reduced from (122.5 ± 5.6) nm to (42.32 ± 3.50) nm after the deposition of a GO layer with a thickness of (0.27 ± 0.02) μm. The GO-coated ceramic hollow fiber membrane was able to remove (52.44 ± 7.01) %, (34.49 ± 4.07) % and (27.91 ± 0.11) % of rifampicin, propanol and methylene blue contaminants, respectively, from the aqueous solutions. Thus, GO-coated alumina hollow fiber membranes present potential applications for wastewater treatment and nanofiltration.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100750"},"PeriodicalIF":2.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453971","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}
引用次数: 0
The influence of the amount of recycled material on microstructure and properties of recycled single-domain YBCO bulks
IF 2.9
Open Ceramics Pub Date : 2025-02-09 DOI: 10.1016/j.oceram.2025.100749
Jan Sklenka , Ondřej Jankovský , Tomáš Hlásek , Michal Lojka , David Sedmidubský , Filip Antončík
{"title":"The influence of the amount of recycled material on microstructure and properties of recycled single-domain YBCO bulks","authors":"Jan Sklenka ,&nbsp;Ondřej Jankovský ,&nbsp;Tomáš Hlásek ,&nbsp;Michal Lojka ,&nbsp;David Sedmidubský ,&nbsp;Filip Antončík","doi":"10.1016/j.oceram.2025.100749","DOIUrl":"10.1016/j.oceram.2025.100749","url":null,"abstract":"<div><div>Novel recycling process based on chemical dissolution was employed to grow REBCO bulks; recycled material obtained by recycling defective YBCO single-domain bulks was added (15 wt.%, 30 wt.% and 45 wt.%) to raw materials to prepare recycled precursor powder. Subsequently, single-domain YBCO bulks were produced using TSMG. Single-domain bulk recycling was chosen, as it represents the most challenging form of waste in the context of REBCO superconductor production. The properties and microstructure of recycled bulks were analyzed in detail. Single-domain YBCO bulks were grown successfully from the recycled precursor powder. Furthermore, it was found that their properties could be tuned by varying the amount of the added recycled powder.This work has demonstrated that up to 30 wt.% of recycled material can be seamlessly incorporated into existing REBCO production processes with only minimal impact and is that even more recycled material can be incorporated as the process matures and scales up.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100749"},"PeriodicalIF":2.9,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421672","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}
引用次数: 0
Highly complex ceramic cores for investment casting applications made possible by additive manufacturing
IF 2.9
Open Ceramics Pub Date : 2025-02-09 DOI: 10.1016/j.oceram.2025.100748
Alice Rosa , Oscar Santoliquido , Francesco Camerota , Rose Ghaderi , Federico Barcelli , Alberto Ortona
{"title":"Highly complex ceramic cores for investment casting applications made possible by additive manufacturing","authors":"Alice Rosa ,&nbsp;Oscar Santoliquido ,&nbsp;Francesco Camerota ,&nbsp;Rose Ghaderi ,&nbsp;Federico Barcelli ,&nbsp;Alberto Ortona","doi":"10.1016/j.oceram.2025.100748","DOIUrl":"10.1016/j.oceram.2025.100748","url":null,"abstract":"<div><div>In this work, high quality complex ceramic cores for the investment casting are successfully produced employing the ceramic digital light processing additive manufacturing technology. Starting from the CAD model of a representative turbine blade core, an in-depth study of the complex features is performed to optimally place the printing supports and ensure printability and dimensional and geometrical accuracy of the sintered core. Green silica cores are produced layer-by-layer by selectively photo polymerize a specifically designed photosensitive SiO<sub>2</sub>-based slurry. The ceramic bodies are obtained through thermal de-binding and sintering at 1220 °C for 6 h. A material qualification is performed highlighting desired properties at microstructural and mechanical levels when compared to a silica-based material produced by traditional methods.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100748"},"PeriodicalIF":2.9,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143386435","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}
引用次数: 0
Impact of bovine serum albumin in simulated body fluid on the dynamic dissolution behavior of bioactive glass S53P4
IF 2.9
Open Ceramics Pub Date : 2025-02-07 DOI: 10.1016/j.oceram.2025.100747
Minna Siekkinen , Adrian Stiller , Xiaoju Wang , Leena Hupa
{"title":"Impact of bovine serum albumin in simulated body fluid on the dynamic dissolution behavior of bioactive glass S53P4","authors":"Minna Siekkinen ,&nbsp;Adrian Stiller ,&nbsp;Xiaoju Wang ,&nbsp;Leena Hupa","doi":"10.1016/j.oceram.2025.100747","DOIUrl":"10.1016/j.oceram.2025.100747","url":null,"abstract":"<div><div>Simulated body fluid with and without bovine serum albumin (1 mg/ml and 10 mg/ml) was used to study the impact of proteins on bioactive glass S53P4 reactions <em>in vitro</em>. The glass particles were exposed to dynamic and static solutions for up to 6 days. Also, a 3-day simulated body fluid pretreatment was done before an additional 3-day exposure to protein solutions. The solution with a higher protein concentration hindered calcium phosphate precipitation on samples in static conditions, whereas the protein did not affect calcium phosphate precipitation in dynamic conditions. Protein adsorbed slightly more on static samples. The protein concentrations suggested immediate adsorption in the dynamic experiments, implying that calcium phosphate is not needed for adsorption. The results indicated that in low protein concentration solutions <em>in vitro,</em> the protein might bind to calcium ions, thus affecting protein adsorption and calcium phosphate precipitation.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100747"},"PeriodicalIF":2.9,"publicationDate":"2025-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143378472","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}
引用次数: 0
Effect of plasma process parameters on the wear behavior of High-Power Pulsed Magnetron Sputtering deposited Aluminum Titanium Nitride coatings
IF 2.9
Open Ceramics Pub Date : 2025-01-28 DOI: 10.1016/j.oceram.2025.100746
Muhammad Naveed PhD , Awais Qadir PhD
{"title":"Effect of plasma process parameters on the wear behavior of High-Power Pulsed Magnetron Sputtering deposited Aluminum Titanium Nitride coatings","authors":"Muhammad Naveed PhD ,&nbsp;Awais Qadir PhD","doi":"10.1016/j.oceram.2025.100746","DOIUrl":"10.1016/j.oceram.2025.100746","url":null,"abstract":"<div><div>High Power Pulsed Magnetron Sputtering (HPPMS) has emerged as a promising physical vapor deposition (PVD) technique for depositing hard coatings on cutting tools. Among these coatings, Aluminum Titanium Nitride (AlTiN) is widely recognized for its excellent mechanical and thermal properties, making it a popular choice for industrial cutting applications. Despite its growing adoption by coating solution providers, there remains a limited understanding of the influence of key HPPMS process parameters on the development of high-performance AlTiN coatings. This study investigates the effects of two critical process parameters—substrate bias and target frequency—on the deposition of AlTiN coatings. The wear behavior of the coated tools was assessed through turning tests, evaluating their performance under industrially relevant conditions. Additionally, the challenges of depositing coatings on tools with complex geometries were addressed. The findings provide valuable insights into the optimization of HPPMS process parameters, contributing to the development of advanced coatings with enhanced wear resistance and improved performance in cutting applications.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100746"},"PeriodicalIF":2.9,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159393","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}
引用次数: 0
Impact of starting alumina powders on densification peculiarities of reactive-sintered YAG:Sm3+ ceramics
IF 2.9
Open Ceramics Pub Date : 2025-01-27 DOI: 10.1016/j.oceram.2025.100745
O․O․ Matvienko , I․O․ Vorona , S․V․ Parkhomenko , A․E․ Balabanov , А․Т․ Budnikov , A․D․ Tymoshenko , P․V․ Mateychenko , А․V․ Tolmachev , V․N Baumer , G․V․ Grygorova , Ya. Korol , R․P․ Yavetskiy
{"title":"Impact of starting alumina powders on densification peculiarities of reactive-sintered YAG:Sm3+ ceramics","authors":"O․O․ Matvienko ,&nbsp;I․O․ Vorona ,&nbsp;S․V․ Parkhomenko ,&nbsp;A․E․ Balabanov ,&nbsp;А․Т․ Budnikov ,&nbsp;A․D․ Tymoshenko ,&nbsp;P․V․ Mateychenko ,&nbsp;А․V․ Tolmachev ,&nbsp;V․N Baumer ,&nbsp;G․V․ Grygorova ,&nbsp;Ya. Korol ,&nbsp;R․P․ Yavetskiy","doi":"10.1016/j.oceram.2025.100745","DOIUrl":"10.1016/j.oceram.2025.100745","url":null,"abstract":"<div><div>YAG:Sm<sup>3+</sup> (5 at.%) transparent ceramics have been obtained by reactive sintering using different starting Al<sub>2</sub>O<sub>3</sub> powders. Effect of particle size in the 100–400 nm range, morphology and dispersity of starting alumina powders on the properties of YAG:Sm<sup>3+</sup> powder mixtures, their densification and resulted optical ceramics have been studied. It was shown that YAG:Sm<sup>3+</sup> powder mixtures prepared with BMA15 and AKP-50 powders possess significant reduction of a fraction of micron-sized agglomerates. The particles within the range of 100–300 nm presented in BMA15 and AKP-50 powders, act as proppant, enabling collapse of the Y<sub>2</sub>O<sub>3</sub> agglomerates. As a result, ceramics prepared from these powder mixtures show improved densification behavior. Reactively-sintered YAG:Sm<sup>3+</sup> transparent ceramics prepared using AKP-50 powder are characterized by optical transmittance of 83% and low concentration of residual pores.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100745"},"PeriodicalIF":2.9,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159384","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}
引用次数: 0
Tricalcium phosphate-based capillary suspensions as inks for 3D printing of porous scaffolds
IF 2.9
Open Ceramics Pub Date : 2025-01-26 DOI: 10.1016/j.oceram.2025.100744
Souhaila Nider , Femke De Ceulaer , Berfu Göksel , Annabel Braem , Erin Koos
{"title":"Tricalcium phosphate-based capillary suspensions as inks for 3D printing of porous scaffolds","authors":"Souhaila Nider ,&nbsp;Femke De Ceulaer ,&nbsp;Berfu Göksel ,&nbsp;Annabel Braem ,&nbsp;Erin Koos","doi":"10.1016/j.oceram.2025.100744","DOIUrl":"10.1016/j.oceram.2025.100744","url":null,"abstract":"<div><div>Direct Ink Writing (DIW) has been extensively studied for creating hierarchical porous structures over recent decades. It finds applications in various fields, including aeronautics, industry, energy, and healthcare. On the other hand, capillary suspensions are an emerging field with significant potential for porous material development. These suspensions, typically three-phase systems, consist of solid particles interconnected by a secondary fluid (usually &lt; 5 vol%), which is immiscible with the main one. Upon fluid removal and subsequent thermal treatment, they form a spanning particle network.</div><div>This study explores the utilisation of β-TCP-based capillary suspensions as DIW inks for fabricating hierarchically porous scaffolds with two different secondary fluids. Rheological assessment of the inks demonstrates shear thinning behaviour, high yield stress, high moduli, and network rebuilding capabilities. While sucrose-based inks exhibit better printability, the ink incorporating silica nanoparticles exhibit structures with the highest porosity.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100744"},"PeriodicalIF":2.9,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143372389","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}
引用次数: 0
Spray drying granulation of potassium sodium niobate (KNN) for binder jetting: Feedstock preparation and influence on sintered material properties
IF 2.9
Open Ceramics Pub Date : 2025-01-23 DOI: 10.1016/j.oceram.2025.100743
Marco Mariani , Francesco Bertolini , Elisa Mercadelli , Guillermo Frias Blanco , Carlo Baldisserri , Antonio Javier Sanchez-Herencia , Carmen Galassi , Begoña Ferrari , Nora Lecis
{"title":"Spray drying granulation of potassium sodium niobate (KNN) for binder jetting: Feedstock preparation and influence on sintered material properties","authors":"Marco Mariani ,&nbsp;Francesco Bertolini ,&nbsp;Elisa Mercadelli ,&nbsp;Guillermo Frias Blanco ,&nbsp;Carlo Baldisserri ,&nbsp;Antonio Javier Sanchez-Herencia ,&nbsp;Carmen Galassi ,&nbsp;Begoña Ferrari ,&nbsp;Nora Lecis","doi":"10.1016/j.oceram.2025.100743","DOIUrl":"10.1016/j.oceram.2025.100743","url":null,"abstract":"<div><div>Binder jetting of potassium sodium niobate (K<sub>0.5</sub>Na<sub>0.5</sub>NbO<sub>3</sub>) offers potential for generating shape-dependent responses with high industrial output. However, the printing stage relies heavily on the properties of the dry feedstock, making its performance optimization crucial. In this regard, morphological functionalization through granulation can be a useful methodology.</div><div>This study characterizes two powders in dry and wet states to develop colloidal suspensions for spray drying granulation. Particle size, shape, and ζ-potential are measured to stabilize them in an aqueous slurry. Granule morphology and flowability are assessed and compared with the original feedstock. Disk-shaped specimens are then printed and sintered.</div><div>Spray drying granulation successfully produces spherical and fine feedstocks compatible with the typical layer thickness (50 μm) of binder jetting. Densified parts displayed significant residual porosity (20–40 %) along the building direction, affecting piezoelectric performance: strain coefficients were reduced, but increased voltage coefficients yielded high figures-of-merit.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100743"},"PeriodicalIF":2.9,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159392","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}
引用次数: 0
Manufacturing of lithium disilicate glass-ceramics by Vat-photopolymerization of water-based photocurable suspensions
IF 2.9
Open Ceramics Pub Date : 2025-01-21 DOI: 10.1016/j.oceram.2025.100742
Manuel F.R.P. Alves , A. Ferrandez-Montero , B. Ferrari , Maria H.F.V. Fernandes , Susana M. Olhero , A.J. Sanchez-Herencia
{"title":"Manufacturing of lithium disilicate glass-ceramics by Vat-photopolymerization of water-based photocurable suspensions","authors":"Manuel F.R.P. Alves ,&nbsp;A. Ferrandez-Montero ,&nbsp;B. Ferrari ,&nbsp;Maria H.F.V. Fernandes ,&nbsp;Susana M. Olhero ,&nbsp;A.J. Sanchez-Herencia","doi":"10.1016/j.oceram.2025.100742","DOIUrl":"10.1016/j.oceram.2025.100742","url":null,"abstract":"<div><div>In this work an eco-friendly methodology to manufacture lithium disilicate complex parts using a water-based photocurable suspension is proposed. The particles surface was modified with polyethyleneimine to improve it rheological and chemical stability in water media. The surface functionalization of powders allows the formulation of high solid content slurries with relatively small (17–20 vol%) amounts of poly(ethylene glycol)diacrylate (PEGDA) as reactive monomer and Lithium phenyl-2,4,6-trimethylbenzoylphosphinate (LAP) as photoinitiator. The printing parameters for Vat-photopolymerization were determined based on photo-rheological measurements. Simple geometrical shapes were successfully printed with suspensions containing 42–45 vol% of solids for structural and mechanical characterization. Due to the aqueous-based media, a fast debinding cycle was employed (≈ 10 h), resulting in sintered samples with ≈ 98 % of relative density and a flexural strength of ≈280 MPa. The optimized photocurable suspension and printing parameters were then selected to print different kind of dental prostheses as a proof-of concept.</div></div>","PeriodicalId":34140,"journal":{"name":"Open Ceramics","volume":"21 ","pages":"Article 100742"},"PeriodicalIF":2.9,"publicationDate":"2025-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160357","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}
引用次数: 0
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