以放电等离子体烧结(Spark Plasma Sintering:SPS)技术制备了相对密度较高的磷酸镧(LaPO4)陶瓷,利用X射线衍射(XRD)分析了不同压力对LaPO4陶瓷晶体取向的影响,并测得在1350 ℃,40 MPa下保温3 min样品从室温到1473 K的热导率,结果表明:利用SPS制备的LaPO4陶瓷出现了较为明显的织构,其(200)晶面与(120)晶面XRD衍射峰积分面积的比值由无压烧结时的0.5989增加到SPS烧结压力为50 MPa时的2.2409,所测热导率随温度升高迅速降低,在高温又有所回升,其中室温热导率较无压烧结时低.
参考文献
| [1] | Morgan PED.;Marshall DB. .CERAMIC COMPOSITES OF MONAZITE AND ALUMINA[J].Journal of the American Ceramic Society,1995(6):1553-1563. |
| [2] | Marshall DB.;Housley RM.;Cheung JT.;Morgan PED. .High-temperature stability of the Al2O3-LaPO4 system[J].Journal of the American Ceramic Society,1998(4):951-956. |
| [3] | Hikichi Y;Nomura T .[J].Journal of the American Ceramic Society,1987,70(10):C252. |
| [4] | Wang Ruigang;Pan Wei;Chen Jian et al.[J].CERAMICS INTERNATIONAL,2002,29(01):19. |
| [5] | Wang Ruigang;Pan Wei;Chen Jian et al.[J].CERAMICS INTERNATIONAL,2002,29(01):83. |
| [6] | Wang Ruigang;Pan Wei;Chen Jian et al.[J].Materials Letters,2002,57(04):822. |
| [7] | Davis JB.;Housley RM.;Morgan PED.;Marshall DB. .Machinable ceramics containing rare-earth phosphates[J].Journal of the American Ceramic Society,1998(8):2169-2175. |
| [8] | Robert Ruh;Donaldson K Y;Hasselman D P H .[J].Journal of the American Ceramic Society,1992,75(10):2887. |
| [9] | Barsoum M W;El-Raghy T .[J].Metallurgical and Materials Transactions,1999,30A:363. |
| [10] | 王瑞刚;潘伟;蒋蒙宁 et al.[J].无机材料学报,1998,27(01):87. |
| [11] | Wu Min;K. Daimon;T. Matsubara;Y. Hikichi .Thermal and mechanical properties of sintered machinable LaPO_4―ZrO_2 composites[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2002(6):1107-1115. |
| [12] | Asmani M;Kermel C;Leriche A et al.[J].Journal of the European Ceramic Society,2001,21(08):1081. |
| [13] | Bast U;Schumann E .[J].Ceramic Engineering & Science Proceedings,2002,23:525. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%