| Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites | |
| Chen, Juanjuan1,2; Chen, Jixin1; Zhang, Hao1,3; Hu, Minmin1,3; Li, Meishuan1 | |
| Corresponding Author | Chen, Jixin(jxchen@imr.ac.cn) |
| 2018-12-01 | |
| Source Publication | JOURNAL OF ADVANCED CERAMICS
 |
| ISSN | 2226-4108 |
| Volume | 7Issue:4Pages:317-324 |
| Abstract | A series of h-BN based composites with Yb4Si2O7N2 as a secondary phase were successfully synthesized by an in situ reaction hot pressing method. It was found that the relative density and room-temperature mechanical properties monotonically increased with increasing the content of Yb4Si2O7N2 from 20 to 50 vol%. When 50 vol% Yb4Si2O7N2 was introduced, the relative density of the composite reached 98.75%, and its flexural strength, compressive strength, fracture toughness, and hardness reached 338 +/- 10 MPa, 803 +/- 49 MPa, 2.06 +/- 0.06 MPam(1/2), and 2.69 +/- 0.10 GPa, respectively. The strengthening effect of Yb4Si2O7N2 was mainly attributed to its high modulus and high hardness. Fine microstructure was also advantageous to strength and could lead to more tortuous crack propagation paths and then improve the fracture toughness of the composites simultaneously. Meanwhile, the composites maintained good machinability. |
| Keyword | h-BN Yb4Si2O7N2 composites microstructure mechanical properties machinability |
| Funding Organization | National Natural Science Foundation of China |
| DOI | 10.1007/s40145-018-0281-5 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[50802099] ; National Natural Science Foundation of China[51072201] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Ceramics |
| WOS ID | WOS:000453768100003 |
| Publisher | SPRINGEROPEN |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/130789 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Chen, Jixin |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Liaoning, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Liaoning, Peoples R China |
| Recommended Citation GB/T 7714 | Chen, Juanjuan,Chen, Jixin,Zhang, Hao,et al. Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites[J]. JOURNAL OF ADVANCED CERAMICS,2018,7(4):317-324. |
| APA | Chen, Juanjuan,Chen, Jixin,Zhang, Hao,Hu, Minmin,&Li, Meishuan.(2018).Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites.JOURNAL OF ADVANCED CERAMICS,7(4),317-324. |
| MLA | Chen, Juanjuan,et al."Microstructure and mechanical properties of h-BN/Yb4Si2O7N2 composites".JOURNAL OF ADVANCED CERAMICS 7.4(2018):317-324. |
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