Synthesis and Characterization of a Nearly Single Bulk Ti2AlN MAX Phase Obtained from Ti/AlN Powder Mixture through Spark Plasma Sintering

被引：9

作者：

Salvo, Christopher ^{[1
]}

Chicardi, Ernesto ^{[2
]}

Poyato, Rosalia ^{[3
]}

Garcia-Garrido, Cristina ^{[4
]}

Jimenez, Jose Antonio ^{[5
]}

Lopez-Pernia, Cristina ^{[6
]}

Tobosque, Pablo ^{[7
]}

Mangalaraja, Ramalinga Viswanathan ^{[8
]}

机构：

[1] Univ Bio Bio, Fac Ingn, Dept Ingn Mecan, Concepcion 4081112, Chile

[2] Univ Seville, Dept Ingn & Ciencia Mat & Transporte, Seville 41092, Spain

[3] CSIC, Inst Ciencia Mat Sevilla ICMSE, Seville 41092, Spain

[4] Inst Andaluz Patrimonio Hist IAPH, Camino Descubrimientos S-N, Seville 41092, Spain

[5] CSIC, CENIM, Ctr Nacl Invest Met, Madrid 28040, Spain

[6] Univ Seville, CSIC, ICMS, Dept Fis Mat Condensada, Seville 410902, Spain

[7] Univ Concepcion, Dept Ingn Mat, Lab Peliculas Delgadas & Proc Electroquim, Concepcion 4070386, Chile

[8] Univ Concepcion, Dept Ingn Mat, Lab Nanotecnol & Ceram Avanzados, Concepcion 4070386, Chile

来源：

MATERIALS | 2021年 / 14卷 / 09期

关键词：

MAX phase; Ti2AlN; spark plasma sintering; MECHANICAL-PROPERTIES; TI4ALN3; MICROSTRUCTURE; CONSOLIDATION; STABILITY; CERAMICS;

D O I：

10.3390/ma14092217

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：

MAX phases are an advanced class of ceramics based on ternary carbides or nitrides that combine some of the ceramic and metallic properties, which make them potential candidate materials for many engineering applications under severe conditions. The present work reports the successful synthesis of nearly single bulk Ti2AlN MAX phase (>98% purity) through solid-state reaction and from a Ti and AlN powder mixture in a molar ratio of 2:1 as starting materials. The mixture of Ti and AlN powders was subjected to reactive spark plasma sintering (SPS) under 30 MPa at 1200 degrees C and 1300 degrees C for 10 min in a vacuum atmosphere. It was found that the massive formation of Al2O3 particles at the grain boundaries during sintering inhibits the development of the Ti2AlN MAX phase in the outer zone of the samples. The effect of sintering temperature on the microstructure and mechanical properties of the Ti2AlN MAX phase was investigated and discussed.

引用

页数：11

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