Abnormal thermal shock behavior in electrical conductivity of Ti2SnC

被引：2

作者：

Zhang, Linquan ^{[1
]}

Li, Shibo ^{[1
]}

Chen, Xiaodong ^{[1
]}

Zhou, Yang ^{[1
]}

机构：

[1] Beijing Jiaotong Univ, Sch Mech & Elect Control Engn, Ctr Mat Sci & Engn, Beijing 100044, Peoples R China

来源：

PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL | 2017年 / 27卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Ti2SnC; Abnormal thermal shock behavior; Recovery; Mechanism; Crack healing; LIQUID REACTION SYNTHESIS; MECHANICAL-PROPERTIES; OXIDATION BEHAVIOR; M2SNC M; PHASES; GA; TI; HF;

D O I：

10.1016/j.pnsc.2017.06.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Some ternary carbide and nitride ceramics have been demonstrated to exhibit abnormal thermal shock behavior in mechanical properties. However, the influence of thermal shock on other properties is not clear. This work reports on the influence of thermal shock on electrical conductivity of Ti2SnC as a representative member of ternary carbides. Abnormal change in electrical conductivity was first demonstrated during quenching Ti2SnC in water at 500-800 degrees C. The residual electrical conductivity of the quenched Ti2SnC gradually decreased with increasing temperature, but abnormally increased after quenching at 600 degrees C. The microstructure of surface cracks was characterized. The main mechanism for the abnormal electrical conductivity recovery is that some narrow branching cracks are filled by metallic Sn precipitating from Ti2SnC.

引用

页码：527 / 530

页数：4

共 27 条

[1] Elastic and Mechanical Properties of the MAX Phases [J].

Barsoum, Michel W. ;

Radovic, Miladin .

ANNUAL REVIEW OF MATERIALS RESEARCH, VOL 41, 2011, 41 :195-227

[2] Driving force and mechanism for spontaneous metal whisker formation [J].

Barsoum, MW ;

Hoffman, EN ;

Doherty, RD ;

Gupta, S ;

Zavaliangos, A .

PHYSICAL REVIEW LETTERS, 2004, 93 (20) :206104-1

[3] The MN+1AXN phases:: A new class of solids;: Thermodynamically stable nanolaminates [J].

Barsoum, MW .

PROGRESS IN SOLID STATE CHEMISTRY, 2000, 28 (1-4) :201-281

[4] Fabrication and characterization of M2SnC (M = Ti, Zr, Hf and Nb) [J].

Barsoum, MW ;

Yaroschuk, G ;

Tyagi, S .

SCRIPTA MATERIALIA, 1997, 37 (10) :1583-1591

[5] Room-temperature deintercalation and self-extrusion of Ga from Cr2GaN [J].

Barsoum, MW ;

Farber, L .

SCIENCE, 1999, 284 (5416) :937-939

[6] Synthesis and characterization of a remarkable ceramic: Ti3SiC2 [J].

Barsoum, MW ;

ElRaghy, T .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (07) :1953-1956

[7] Crack Healing in Ti2Al0.5Sn0.5C-Al2O3 Composites [J].

Bei, Guo Ping ;

Pedimonte, Birgit Joana ;

Pezoldt, Marc ;

Ast, Johannes ;

Fey, Tobias ;

Goeken, Mathias ;

Greil, Peter .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2015, 98 (05) :1604-1610

[8] Oxidation Behavior of MAX Phase Ti2Al(1-x)SnxC Solid Solution [J].

Bei, Guoping ;

Pedimonte, Birgit-Joana ;

Fey, Tobias ;

Greil, Peter .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2013, 96 (05) :1359-1362

[9] Solid-liquid reaction synthesis and thermal stability of Ti2SnC powders [J].

Dong, HY ;

Yan, CK ;

Chen, SQ ;

Zhou, YC .

JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (05) :1402-1407

[10] Synthesis and characterization of Hf2PbC, Zr2PbC and M2SnC (M = Ti, Hf, Nb or Zr) [J].

El-Raghy, T ;

Chakraborty, S ;

Barsoum, MW .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2000, 20 (14-15) :2619-2625

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