Fabrication of SiCN foam ceramic from polysilazane and polyurethane
文献类型:期刊论文
作者 | Liu Hongli; Zhong Wenwu; Song Chunmei; Zheng Zhimin |
刊名 | RARE METAL MATERIALS AND ENGINEERING
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出版日期 | 2007-08-01 |
卷号 | 36页码:538-541 |
关键词 | Foam Ceramic Polysilazane Precursor Infiltration Pyrolysis Polymeric Sponge Impregnation Process |
ISSN号 | 1002-185X |
英文摘要 | The foam SiCN ceramic was prepared using the polyurethane sponge and polysilazane as raw materials. It was found the compression strength of the foam ceramic was affected by the processing parameters including the pyrolysis temperature and the number of times of reinforcement treatment. XRD analysis reveals that the polysilazane has transformed into an amorphous SiCN ceramic at 1100 similar to 1300 degrees C. The amorphous SiCN ceramic transforms into crystal SiC and Si3N4 at 1400 degrees C. The maximum compression strength of 11.5 MPa was obtained at the pyrolysis temperature of 1300 degrees C. The reinforcement treatment can remarkably increase the compression strength of foam ceramic. Microstructure study reveals that the foam SiCN ceramic have an open, uniform and interconnected porous structure with a pore size of 100 similar to 500 mu m and high porosity of 85%. |
语种 | 英语 |
WOS记录号 | WOS:000249866900154 |
出版者 | NORTHWEST INST NONFERROUS METAL RESEARCH |
源URL | [http://ir.iccas.ac.cn/handle/121111/62369] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Liu Hongli |
作者单位 | 1.Jiamusi Univ, Coll Mat Sci & Engn, Jiamusi 154007, Peoples R China 2.Jiamusi Univ, Heilingjiang 154007, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China |
推荐引用方式 GB/T 7714 | Liu Hongli,Zhong Wenwu,Song Chunmei,et al. Fabrication of SiCN foam ceramic from polysilazane and polyurethane[J]. RARE METAL MATERIALS AND ENGINEERING,2007,36:538-541. |
APA | Liu Hongli,Zhong Wenwu,Song Chunmei,&Zheng Zhimin.(2007).Fabrication of SiCN foam ceramic from polysilazane and polyurethane.RARE METAL MATERIALS AND ENGINEERING,36,538-541. |
MLA | Liu Hongli,et al."Fabrication of SiCN foam ceramic from polysilazane and polyurethane".RARE METAL MATERIALS AND ENGINEERING 36(2007):538-541. |
入库方式: OAI收割
来源:化学研究所
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