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Processing and Application of Ceramics最新文献

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An investigation about the mechanical and corrosion properties of cordierite based ceramic composites 堇青石基陶瓷复合材料的力学和腐蚀性能研究
4区 材料科学
Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2303271p
Tuğba Parlak, Ediz Ercenk, Abdülkadir Akyol, Sevcan Ceylan, Ayşe Demirkiran
{"title":"An investigation about the mechanical and corrosion properties of cordierite based ceramic composites","authors":"Tuğba Parlak, Ediz Ercenk, Abdülkadir Akyol, Sevcan Ceylan, Ayşe Demirkiran","doi":"10.2298/pac2303271p","DOIUrl":"https://doi.org/10.2298/pac2303271p","url":null,"abstract":"One of the essential phases in the MgO-Al2O3-SiO2 (MAS) system, cordierite, has the chemical formula 2MgO? 2 Al2O3 ? 5 SiO2. Therefore, cordierite is generally produced from natural raw materials by liquid phase sintering. In this study, dense cordierite and cordierite-based/ZrO2 ceramic composites were produced economically from natural zeolite at a temperature as low as 1250 ?C. Phase analyses with XRD and microstructure examinations with SEM/FESEM were performed. The hot salt corrosion behaviour of ZrSiO4 crystals in a cordierite matrix was also tested. It was determined that the addition of ZrO2 to reduce the average grain size had a positive effect on wear and corrosion resistance. Density, porosity, hardness, flexural strength and wear behaviour of the cordierite-based/ZrO2 ceramic composites were determined. In addition, the hardness values of the zirconia free sample, the samples containing 10 and 20 wt.% zirconia were measured as 11.29, 12.60 and 12.91GPa, respectively, while the specific wear rates were identified as 5.097 ? 10?3, 6.302 ? 10?6 and 3.393 ? 10?7 mm3/Nm, respectively. The hardness increased and the wear resistance changed with the addition of zirconia.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135269123","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}
引用次数: 0
Influence of Er3+ doping on the mechanical and thermophysical properties of (ErxY1-x)3Al5O12 ceramics Er3+掺杂对(ErxY1-x)3Al5O12陶瓷力学和热物理性能的影响
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301023w
Xuanli Wang, Jinxing Xing, Min Xie, R. Mu, Xi-wen Song
{"title":"Influence of Er3+ doping on the mechanical and thermophysical properties of (ErxY1-x)3Al5O12 ceramics","authors":"Xuanli Wang, Jinxing Xing, Min Xie, R. Mu, Xi-wen Song","doi":"10.2298/pac2301023w","DOIUrl":"https://doi.org/10.2298/pac2301023w","url":null,"abstract":"In this work, Er3+ was selected to replace Y3+ in the yttrium aluminium garnet (YAG) in order to improve its mechanical and thermophysical properties. A series of (ErxY1-x)3Al5O12 (x = 0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.0) ceramics were prepared by solid-state synthesis method at 1000 ?C and finally sintered at 1600 ?C for 5 h. The microstructure and morphology of the prepared ceramics were investigated. The results showed that all Er3+ doped Y3Al5O12 ceramics exhibited single garnet-type YAG phase and good compactness. With the increase of Er3+ doping concentration, the thermal conductivity of the (ErxY1-x)3Al5O12 ceramics decreased slowly and then increased subsequently. Among the investigated specimens, the (Er0.7Y0.3)3Al5O12 had the lowest thermal conductivity (1.51W/m?K, at 1000 ?C), which was about 28% lower than that of the pure YAG (2.1W/m?K, at 1000 ?C). As the Er3+ doping concentration increased, the thermal expansion coefficient of the (ErxY1-x)3Al5O12 ceramics hardly changed, remaining around 9.08 ? 10?6 K?1 at 1200 ?C. Moreover, when the Er3+ doping concentration exceeded 0.5, the mechanical properties of the (ErxY1-x)3Al5O12 ceramics increased suddenly. Specifically, the hardness increased from 14.28 to 16.53GPa and the bending strength increased from 231.74 to 324.49MPa.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68582651","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}
引用次数: 0
Performance and purification mechanism of the mullite/SiC composite filter tube membrane 莫来石/碳化硅复合滤管膜的性能及净化机理
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2023-01-01 DOI: 10.2298/pac2301061y
Zhangfu Yuan, Mei Lu, Xuan Peng, Bing-sheng Xu, Yuantao Shi, Hongxin Zhao
{"title":"Performance and purification mechanism of the mullite/SiC composite filter tube membrane","authors":"Zhangfu Yuan, Mei Lu, Xuan Peng, Bing-sheng Xu, Yuantao Shi, Hongxin Zhao","doi":"10.2298/pac2301061y","DOIUrl":"https://doi.org/10.2298/pac2301061y","url":null,"abstract":"Asymmetric composite tubular membranes were prepared with SiC as the support body and mullite as the membrane layer. The asymmetric mullite/SiC composite filter tube membranes were characterized by different analytic techniques. The mullite membrane was prepared as a layer on the SiC support with a thickness of about 175 ?m, pore size of about 1-10 ?m and porosity of 9.9%. The SiC support tube had a pore size of about 20-150 ?m and porosity of 19.0%. After 360 days of high-temperature flue gas filtration, the most available pore size of the mullite/SiC composite filter tube membrane reduces from 45.2 to 36.4 ?m (the reduction rate of about 19.4%). Analysis of the dust collected by back-blowing revealed that the dust particle size range was between 0.1-100 ?m and about 50%of the dust particles were below 2.5 ?m in size. The average capture rate of dust can reach 98.4%, indicating that the asymmetric mullite/SiC composite filter tube membrane has excellent filtration performance for the dust below PM2.5 in the high-temperature complex flue gas.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68582775","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}
引用次数: 0
High-temperature evolution of diamond-SiC composites 金刚石- sic复合材料的高温演化
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201069b
E. Bódis, I. Cora, Z. Fogarassy, M. Veres, P. Németh
{"title":"High-temperature evolution of diamond-SiC composites","authors":"E. Bódis, I. Cora, Z. Fogarassy, M. Veres, P. Németh","doi":"10.2298/pac2201069b","DOIUrl":"https://doi.org/10.2298/pac2201069b","url":null,"abstract":"Diamond-SiC composites are attractive for improving the catastrophic fracture behaviour of SiC. However, fundamental knowledge is missing about the structure of this system and the mechanism of diamond graphitization. We used spark plasma sintering to study the diamond-Si-SiC system between 1600 and 2000?C in the function of nanocrystalline (ND) and microcrystalline (MD) diamond addition as well as the quantity of Sibonding phase. Increasing sintering temperature induces intense graphitization and formation of nano-onions, few-layered graphene and well-ordered graphite in the prepared composites at elevated temperature. High resolution transmission electron microscopy study demonstrates the occurrence of the previously erroneously identified 5H-SiC polytype in the samples prepared at 2000?C. Regardless of Si and diamond contents, SiC formation is not confirmed even at high temperature.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68580134","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}
引用次数: 0
Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites 铣削时间对LiAlH4-Fe2O3复合材料脱氢影响的研究
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2203259m
I. Milanović, Sanja Milosevic-Govedarovic, Miodrag J. Lukić, Z. Jovanović, Jelena Rmus, Andjela Mitrovic-Rajic, J. Grbovic-Novakovic, S. Kurko
{"title":"Study of milling time impact on hydrogen desorption from LiAlH4-Fe2O3 composites","authors":"I. Milanović, Sanja Milosevic-Govedarovic, Miodrag J. Lukić, Z. Jovanović, Jelena Rmus, Andjela Mitrovic-Rajic, J. Grbovic-Novakovic, S. Kurko","doi":"10.2298/pac2203259m","DOIUrl":"https://doi.org/10.2298/pac2203259m","url":null,"abstract":"LiAlH4 was modified by mechanical milling and with the addition of 5 wt.% Fe2O3 in order to improve its hydrogen desorption properties. The composite was milled for 1, 3, 5, 7 or 15min, and depending on the milling time, various phenomena took place. Up to a milling time of 5min, the particle size of the composite decreases. Further milling leads to the particles agglomeration reaching the size of the starting material after 15min. Moreover, the mechanical milling process leads to the transformation of AlH - 4 to AlH 3 - 6 structure as a result of partial hydrogen desorption. Hydrogen desorption during the milling is the most pronounced in the sample milled for 15min, so this sample has only one hydrogen desorption peak in the temperature-programmed desorption measurements.Mechanical milling with the addition of Fe2O3 for up to 15min improves LiAlH4 hydrogen desorption properties as hydrogen desorption temperature and apparent activation energies decrease.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68581462","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}
引用次数: 0
Influence of V2O5 and B2O3 addition on the sintering behaviour and physical properties of ZnO ceramics 添加V2O5和B2O3对ZnO陶瓷烧结性能和物理性能的影响
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201048y
Price Yüksel, Gökhan Hardal, B. Kınacı
{"title":"Influence of V2O5 and B2O3 addition on the sintering behaviour and physical properties of ZnO ceramics","authors":"Price Yüksel, Gökhan Hardal, B. Kınacı","doi":"10.2298/pac2201048y","DOIUrl":"https://doi.org/10.2298/pac2201048y","url":null,"abstract":"The effect of V2O5 and B2O3 additions on sintering behaviour and physical properties of ZnO ceramics was investigated. XRD studies revealed ZnO as main phase with a hexagonal wurtzite-type structure. The V2O5 addition is the reason for an increase in grain size and some grains of oblong shape morphology in the ZnO ceramics. The dual addition of V2O5-B2O3 improved the liquid-assisted sintering of ZnO ceramics and resulted in further increase in grain size with more uniform grain growth. The reduction of sintering temperature to 900?C for ZnO ceramics was observed with the dual addition of V2O5 and B2O3. The room temperature PL spectra of the Z (ZnO), ZV (ZnO with 0.5mol% V2O5) and ZVB (ZnO with 0.5mol% V2O5 and 0.5mol% B2O3) ceramics revealed broad visible emission band because of impurities and defects in ZnO ceramics caused by oxygen vacancies due to vanadium and boron additions, as well as zinc interstitials. This emission band between 450-750 nm includes the entire visible region from blue to red.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"29 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68579972","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}
引用次数: 1
Influence of powder characteristics on the sintering behaviour of reactive alumina powders 粉体特性对活性氧化铝粉体烧结性能的影响
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201001t
Hai Tang, Yingheng Shi, W. Yuan
{"title":"Influence of powder characteristics on the sintering behaviour of reactive alumina powders","authors":"Hai Tang, Yingheng Shi, W. Yuan","doi":"10.2298/pac2201001t","DOIUrl":"https://doi.org/10.2298/pac2201001t","url":null,"abstract":"Fine reactive alumina powders have a significant impact on the properties of refractories at high temperatures. Except for the hydration of cement and in situ reactions, the performance of castables is also correlated with the sintering of reactive alumina. The characteristics of fine alumina powders produced by various manufacturers are quite different. This work aims to investigate the comprehensive influence of powder characteristics on the sintering behaviour of reactive alumina powders. Three types of commercial reactive alumina powders were selected for experiments. The linear shrinkage, bulk density, apparent porosity and microstructure of alumina compacts calcined at different temperatures were analysed. It was demonstrated that large specific surface area and higher SiO2 content had a positive effect on the densification of alumina compacts. The calculation based on the hypothetical composition of alumina grain boundary indicated that SiO2 mainly participated in the formation of liquid. Therefore, more liquid was generated at the grain boundary of alumina grains containing higher SiO2 content, which resulted in better sinterability of reactive alumina powders.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68579424","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}
引用次数: 0
Hydrophilic and hydrophobic TiO2 coatings by pulsed electrophoretic deposition 脉冲电泳沉积制备亲疏水TiO2涂层
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2201083m
Hidetoshi Miyazaki, M. Yamane, Yu Mimaru
{"title":"Hydrophilic and hydrophobic TiO2 coatings by pulsed electrophoretic deposition","authors":"Hidetoshi Miyazaki, M. Yamane, Yu Mimaru","doi":"10.2298/pac2201083m","DOIUrl":"https://doi.org/10.2298/pac2201083m","url":null,"abstract":"Hydrophobic and hydrophilic coatings have been widely studied because of their functions such as anticorrosion and self-cleaning. In this study two different TiO2 suspensions, obtained by dispersing of hydrophilic and hydrophobic TiO2 particles in ethanol, were used for preparation of titania coatings on stainless steel substrates by pulsed electrophoretic deposition (EPD). The resultant hydrophilic and hydrophobic rytile TiO2 coatings showed random orientation and are dense with no cracks. The thicknesses of the coatings obtained using hydrophilic and hydrophobic TiO2 particles were 22.5 and 20.1 ?m, respectively, whereas thier contact angles were 6.3? and 124.0?, respectively. The results show that hydrophilic and hydrophobic TiO2 coatings can be performed using pulsed EPD.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68580366","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}
引用次数: 0
Investigations on colloidal and dry formed alumina parts under pressure and pressure-less conditions 在压力和无压力条件下对胶体和干燥成型氧化铝零件的研究
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202160r
P. Raju, P. Biswas, A. Khanra, Y. Rao, Roy Johnson
{"title":"Investigations on colloidal and dry formed alumina parts under pressure and pressure-less conditions","authors":"P. Raju, P. Biswas, A. Khanra, Y. Rao, Roy Johnson","doi":"10.2298/pac2202160r","DOIUrl":"https://doi.org/10.2298/pac2202160r","url":null,"abstract":"Pressure assisted casting of advanced ceramics is an emerging preparation technique as it permits using a colloidal slips in shaping under pressure. Application of pressure provides flexibility in forming of complex shapes in combination with high homogeneity, superior green density, strength and high productivity. Current study compares conventional slip casting (CSC), pressure slip casting (PSC) and cold isostatic pressing (CIP) used for preparation of alumina green bodies. Since particle size is a limitation in PSC process due to the defined pore size of the mould, the same starting alumina powder obtained by mixing of powders with two different average particle size (7 ?m and 1.43 ?m) in the proportion of 65:35 was employed in all three processes. Green densities of 65%TD at 35 bar in case of PSC and 66%TD at 1200 bar after CIP were obtained; however, density of the CSC samples was only 50%TD. Flexural strength and fractographic studies were carried out and correlated with the respective processes. The samples were also sintered at 1600 ?C to evaluate their sinterability.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68580561","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}
引用次数: 0
Effect of TiH2 on microstructure of hydroxyapatite sintered at various temperatures TiH2对不同温度下羟基磷灰石烧结组织的影响
IF 1.1 4区 材料科学
Processing and Application of Ceramics Pub Date : 2022-01-01 DOI: 10.2298/pac2202125a
N. Amirthalingam, Sathishkumar Panchatcharam, T. Deivarajan, Manohar Paramasivam
{"title":"Effect of TiH2 on microstructure of hydroxyapatite sintered at various temperatures","authors":"N. Amirthalingam, Sathishkumar Panchatcharam, T. Deivarajan, Manohar Paramasivam","doi":"10.2298/pac2202125a","DOIUrl":"https://doi.org/10.2298/pac2202125a","url":null,"abstract":"Titanium reinforced hydroxyapatite preparation was attempted by using TiH2. The hydroxyapatite (HAp) was obtained from wet chemical facile method and was mixed with TiH2 (5 to 20 wt.%). The mixtures were shaped by pressing and samples were sintered at different temperatures from 900 to 1200?C. X-ray diffraction results showed that all the high temperature sintered samples with higher amount of TiH2 contain ?-tricalcium phosphate (?-TCP) and perovskite CaTiO3 as the major crystalline phases, while minor reaction products like ?-TCP and tetracalcium phosphate (TTCP) were also recorded for the various HAp-TiH2 composites. Microstructure evaluation was done by scanning electronmicroscopy which revealed the change in microstructure from needle-like to hexagonal grainy structure with increasing TiH2 content. Fourier transform infrared spectroscopy was done for functional groups analysis while density and porosity were also measured to analyse sintering ability of the composite samples.","PeriodicalId":20596,"journal":{"name":"Processing and Application of Ceramics","volume":"1 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68580778","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}
引用次数: 0
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