以WC粒径为4μm气孔率为55％的多孔WC为预制体,Zr2Cu合金为浸渗剂,采用低温反应浸渗工艺制备了ZrC-W复合材料,系统研究了反应浸渗温度和时间对复合材料的物相组成及显微组织的影响规律.结果表明,随浸渗温度的升高,WC与Zr2Cu合金的反应程度增加,即生成的ZrC和W的含量增加,WC的残留量减小,当浸渗温度超过1500℃时,残留的WC转变为W2C相.随浸渗时间的延长,ZrC和W的含量增加,WC的残留量减小,ZrC的点阵常数增大,并出现W2Zr、Cu5Zr等中间反应相.
参考文献
| [1] | Song GM.;Wang YJ.;Zhou Y. .The mechanical and thermophysical properties of ZrC/W composites at elevated temperature[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):223-232. |
| [2] | 张太全 .ZrCp/W复合材料的高温压缩变形行为及强化机制[D].哈尔滨工业大学,2008. |
| [3] | Lipke D W;Zhang Y;Liu Y et al.Net-shape/net-dimension ZrC/W-based composites with complex geometries via rapid prototyping and displacive compensation of porosity[J].Journal of the European Ceramic Society,2010,30(11):2265-2277. |
| [4] | Ostrovskii E K;Bednyak L G;Neshpor V S et al.The stability of emission properties of ZrC-W alloys[R].Deposited at the Elektroniks Central Scientific Institute,No.5627/78,1978. |
| [5] | Zhang TQ;Wang YJ;Zhou Y;Lei TQ;Song GM .Compressive deformation behavior of a 30 vol.%ZrCp/W composite at temperatures of 1300-1600 degrees C[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008(1-2):382-389. |
| [6] | 王玉金,张太全,赵彦伟,周玉.高温退火对20vol%ZrCP/W复合材料组织和力学性能的影响[J].材料热处理学报,2009(02):18-21. |
| [7] | Zhang SC;Hilmas GE;Fahrenholtz WG .Zirconium carbide-tungsten cermets prepared by In situ reaction sintering[J].Journal of the American Ceramic Society,2007(6):1930-1933. |
| [8] | Mostafa Roosta;Hamidreza Baharvandi;Hossein Abdizade .The evaluation of W/ZrC composite fabricated through reaction sintering of two precursors: Conventional ZrO_2/WC and novel ZrSiO_4/WC[J].International Journal of Refractory Metals & Hard Materials,2011(6):710-715. |
| [9] | Sandhage K H;Unocic R R;Dickerson M B et al.Method for fabricating high-melting,wear-resistant ceramics and ceramic composites at low temperatures[P].USA,6596698,2003-7-29. |
| [10] | Zbigniew Grzesik;Matthew B. Dickerson;Ken H. Sandhage .Incongruent reduction of tungsten carbide by a zirconium-copper melt[J].Journal of Materials Research,2003(9):2135-2140. |
| [11] | Matthew B. Dickerson;Robert L. Snyder;Ken H. Sandhage .Dense, Near Net-Shaped, Carbide/Refractory Metal Composites at Modest Temperatures by the Displacive Compensation of Porosity (DCP) Method[J].Journal of the American Ceramic Society,2002(3):730-732. |
| [12] | Massalski T B .Binary alloy phase diagrams[Z].CD-ROM,Plus Updates,Version ASM International,Materials Park,1996. |
| [13] | Zhao Y W;Wang Y J;Peng H-X et al.Dense sub-micron-sized ZrC-W composite produced by reactive melt infiltration at 1200 ℃[J].International Journal of Refractory Metals and Hard Materials,2012,30:196-199. |
| [14] | Yanwei Zhao;Yujin Wang;Yu Zhou .Reactive wetting and infiltration of polycrystalline WC by molten Zr_2Cu alloy[J].Scripta materialia,2011(3):229-232. |
| [15] | Shouming Zhang;Song Wang;Wei Li .Microstructure and properties of W-ZrC composites prepared by the displacive compensation of porosity (DCP) method[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2011(33):8327-8332. |
| [16] | M. Adabi;A. Amadeh .Effect of infiltration parameters on composition of W-ZrC composites produced by displacive compensation of porosity (DCP) method[J].International Journal of Refractory Metals & Hard Materials,2011(1):31-37. |
| [17] | 赵彦伟,王玉金,张太全,周玉,贾德昌.W/ZrC复合材料的反应熔渗法制备[J].稀有金属材料与工程,2009(01):143-146. |
| [18] | Xiong W;Du Y;Zhang W.Carbon-Tungsten-Zirconium[J].Landolt-B (o)rnstein New Series Ⅳ/11E3,2010:31-47. |
| [19] | Fernando ALMEIDA COSTA OLIVEIRA;Jorge CRUZ FERNANDES;Jean-Marie BADIE .High meta-stability of tungsten sub-carbide W_2C formed from tungsten/ carbon powder mixture during eruptive heating in a solar furnace[J].International Journal of Refractory Metals & Hard Materials,2007(1):101-106. |
| [20] | Chidambaram Nachiappan;Lingappa Rangaraj;Canchi Divakar .Synthesis and Densification of Monolithic Zirconium Carbide by Reactive Hot Pressing[J].Journal of the American Ceramic Society,2010(5):1341-1346. |
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%