| Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength | |
| Wu, Z; Sun, LC; Wang, JY; Wang, JY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Highperformance Ceram Div, Shenyang 110016, Peoples R China. | |
| 2016-10-01 | |
| Source Publication | CERAMICS INTERNATIONAL
 |
| ISSN | 0272-8842 |
| Volume | 42Issue:13Pages:14894-14902 |
| Abstract | The emerging porous Y2SiO5 ceramic is regarded as a promising candidate of thermal insulator owing to its very low thermal conductivity. However, recent works on porous Y2SiO5 are confronted with severe problems such as large linear shrinkage (18.51-20.8%), low porosity (47.74-62%) and low strength (24.45-16.51 MPa) at high sintering temperatures (1450-1500 degrees C). In this work, highly porous Y2SiO5 ceramic with low shrinkage and excellent high-temperature strength was fabricated by in-situ foam-gelcasting method at 1550 degrees C. The as-prepared sample has unique multiple pore structures, low linear shrinkages of 6.3-4.5%, controllable high porosities of 60.7-88.4%, high compressive strengths of 38.2-0.90 MPa, and low thermal conductivities of 0.126-0.513 W/(m K) (porosity: 87.1-60.2%). The effects of relative density on relative strength, as well as porosity on thermal conductivity were quantitatively discussed. The present results indicate that porous Y2SiO5 is the potential high-temperature thermal insulation material of light weight, low thermal conductivity, and high strength. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
| description.department | [wu, zhen ; sun, luchao ; wang, jingyang] chinese acad sci, inst met res, shenyang natl lab mat sci, highperformance ceram div, shenyang 110016, peoples r china |
| Keyword | Porous Y2sio5 Ceramic Low Linear Shrinkage High Porosity High-temperature Strength Low Thermal Conductivity |
| Subject Area | Materials Science, Ceramics |
| Funding Organization | National Natural Science Foundation of China [51372252, 51402313] |
| Indexed By | sci |
| Language | 英语 |
| WOS ID | WOS:000381171600081 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/76269 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, JY (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Highperformance Ceram Div, Shenyang 110016, Peoples R China. |
| Recommended Citation GB/T 7714 | Wu, Z,Sun, LC,Wang, JY,et al. Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength[J]. CERAMICS INTERNATIONAL,2016,42(13):14894-14902. |
| APA | Wu, Z,Sun, LC,Wang, JY,&Wang, JY .(2016).Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength.CERAMICS INTERNATIONAL,42(13),14894-14902. |
| MLA | Wu, Z,et al."Synthesis and characterization of porous Y2SiO5 with low linear shrinkage, high porosity and high strength".CERAMICS INTERNATIONAL 42.13(2016):14894-14902. |
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