提出了一种新的低成本自反应喷射成形技术,制备出TiC-TiB2复合陶瓷材料坯件,研究了材料的组织结构对性能的影响.结果表明,反应喷射成形坯件的组织具有快速凝固特征,主要由浅灰色连续基体相TiC0.3N0.7、尺寸为100nm-1μm呈柱状分布的黑色颗粒TiB2,少量分布于基体相边界的白色相组织TiO2以及少量黑色的不规则孔洞四部分组成.喷射沉积坯件的孔隙率为2.3%,显微硬度为2029HV0.2,断裂韧性为6.0 MPa·m1/2.向喷射体系中添加20%(质量分数)的Al-Ni合金使材料的孔隙率下降到1.7%,断裂韧性提高到7.7 MPa·m1/2,显微硬度下降到1259HV0.2.由于自反应喷射成形坯件的晶粒细小,其断裂韧性高于反应烧结与自蔓延高温合成方法制备的TiC-TiB2复合陶瓷材料.
参考文献
| [1] | ZHU Chuncheng,QU Wei,ZHANG Xinghong,HE Xiaodong,Progress in research on TiC-TiB2 composites,Journal of Materials Review,17(1),48(2003)(朱春城,曲伟,张幸红,赫晓东,TiC-TiB2复合材料的研究进展,材料导报,17(1),48(2003)) |
| [2] | D.Zhong,J.J.Moore,B.M.Mishra,T.Ohno,E.A.Levashov,J.Disamc,Composition and oxidation resistance of Ti-B-c and Ti-B-C-N coatings deposited by magnetron sputtering,Surface and Coatings Technology,163,50(2003) |
| [3] | K.W.Lee,Y.H.Chen,Y.W.Chung,L.M.Keer,Hardness,internal stress and thermal stability of TiB2/TiC multilayer coatings synthesized by magnetron sputtering with and without substrate rotation,Surface and Coatings Technology,177(2),591(2004) |
| [4] | F.Kustas,B.Mishra,J.Zhou,Fabrication and characterization of TiB2-TiC and tungsten co-sputtered wear coatings,Surface and Coatings Technology,153,25(2002) |
| [5] | LI Jianlin,LI Fei,HU Keao,TiB2-TiC nanocomposite powder fabricated via high energy ball milling,Journal of the European Ceramic Society,21,2829(2001) |
| [6] | ZHAO Hong,CHENG Yibing,Formation of TiB2-TiC composites by reactive sintering,Ceramics International,25(1),353(1999) |
| [7] | S.K.Bhaumik,C.Divakar,A.K.Singh,G.S.Upadhyaya,Synthesis and sintering of TiB2 and TiB2-TiC composite under high pressure,Materials Science and Engineering A,279,275(2000) |
| [8] | Zhang Xinghong,Zhu Chuncheng,Qu Wei,He Xiaodong,V.L.Kvanin,Self-propagating high temperature combustion synthesis of TiC/TiB2 ceramic-matrix composites,Composites Science and Technology,62,2037(2002) |
| [9] | J.W.Lee,Z.A.Munir,M.Ohyanagi,Dense nanocrystalline TiB2-TiC composites formed by field activation from high-energy ball milled reactants,Materials Science and Engineering A,325,221(2002) |
| [10] | LIU Wenjun,XIONG Weihao,ZHENG Yong,Appearance of fracture and toughening mechanisms of Ti(C,N)-based cermet,The Chinese Journal of Nonferrous Metal,16(5),800(2006)(刘文俊,熊惟皓,郑勇,Ti(C,N)基金属陶瓷断口形貌及增韧机理,中国有色金属学报,18(5),800(2006)) |
| [11] | TANG Jianxin,ZENG Zhaoqiang,HU Xiaoqing,MIAO Hezhuo,TiB2-TiC ceramics matrix composites prepared by in-situ technique,Materials Engineering,(2),19(2001)(唐建新,曾照强,胡晓清,苗赫濯,原位合成TiB2-TiC陶瓷基复合材料,材料工程,(2),19(2001)) |
| [12] | S.J.Hong,V.Viswanathan,K.Rea,S.Patil,S.Deshpande,P.Georgieva,T.McKechnie,S.Seal,Plasma spray formed near-net-shape MoSi2-Si3N4 bulk nanocomposites-structure property evaluation,Materials Science and Engineering A,404,165(2005) |
| [13] | YIN Bangyao,WANG Lingsen,Evaluation of fracture toughness of zirconia-based ceramic by the indentation method,Powder Metallurgy Materials Science and Engineering,6(1),78(2001)(尹邦跃,王零森,Zr02基陶瓷压痕断裂韧性的测定,粉末冶金材料科学与工程,6(1),78(2001)) |
| [14] | ZHU Chuncheng,ZHANG Xinghong,XU Qiang,HE Xiaodong,Self-propagating high-temperature synthesis of TiB2/TiC ceramics,Materials Engineering,(2),13(2002)(朱春城,张幸红,徐强,赫晓东,自蔓延高温合成法制备TiB2/TiC复合陶瓷,材料工程,(2),13(2002)) |
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%