Development of AlN and TiB2 Composites with Nb2O5, Y2O3 and ZrO2 as Sintering Aids

被引：6

作者：

Gonzalez, Jose C. ^{[1
]}

Rodriguez, Miguel A. ^{[2
]}

Figueroa, Ignacio A. ^{[3
]}

Villafuerte-Castrejon, Maria-Elena ^{[3
]}

Diaz, Gerardo C. ^{[1
]}

机构：

[1] Univ Autonoma Baja California, Fac Ciencias Quim & Ingn, Calzada Tecnol 14418, Mesa De Otay 22390, Tijuana, Mexico

[2] CSIC, Inst Ceram & Vidrio, C Kelsen 5,Campus Cantoblanco, Madrid 28049, Spain

[3] Univ Nacl Autonoma Mexico, Inst Invest Mat, Ciudad Univ,AP 70-360, Ciudad De Mexico 04510, Mexico

来源：

MATERIALS | 2017年 / 10卷 / 03期

关键词：

park plasma sintering; composites; mechanical properties; MECHANICAL-PROPERTIES; THERMAL-CONDUCTIVITY; ALUMINUM NITRIDE; DENSIFICATION;

D O I：

10.3390/ma10030324

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis of AlN and TiB2 by spark plasma sintering (SPS) and the effect of Nb2O5, Y2O3 and ZrO2 additions on the mechanical properties and densification of the produced composites is reported and discussed. After the SPS process, dense AlN and TiB2 composites with Nb2O5, Y2O3 and ZrO2 were successfully prepared. X-ray diffraction analysis showed that in the AlN composites, the addition of Nb2O5 gives rise to Nb4N3 during sintering. The compound Y3Al5O12 (YAG) was observed as precipitate in the sample with Y2O3. X-ray diffraction analysis of the TiB2 composites showed TiB2 as a single phase in these materials. The maximum Vickers and toughness values were 14.19 +/- 1.43 GPa and 27.52 +/- 1.75 GPa for the AlN and TiB2 composites, respectively.

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页数：9

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