Ti-2B-60wt%Cu)/(3Ti-2BN-x.Cu)

Journal of Inorganic Materials

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Ti-2B-60wt%Cu)/(3Ti-2BN-x.Cu)

CAO Wen-Bin¹; SHEN Wei-Ping¹; GE Chang-Chun¹; Grigoryan E H²; Sytschev A E²; Rogachev A S²

1. Laboratory of Special Ceramics & Powder Metallurgy （LSCPM）; University of Science and Technology Beijing; Beijing 100083; China; 2. Institute of Structural Macrokinetics and Material Science (ISMAN), Russian Academy of Sciences, Chernogolovka, Moscow 142432, Russia

Received:1999-08-26 Revised:1999-10-06 Published:2000-08-20 Online:2000-08-20

Abstract

Abstract: The effects of Cu content and density of powder compacts on the features and velocity of the combustion wave during its propagation through the bi-layered powder compacts of (Ti-2B-
60wt%Cu)/(3Ti-2BN-xCu) (x=0, 10, 20, 40wt%) were investigated. The combustion wave velocity for specimen (3Ti-2BN), (3Ti-2BN-10wt%Cu), (3Ti-2BN-20wt%Cu) and (Ti-2B-
60wt%Cu) compacted with pressure p=60MPa is 4.96, 4.43, 2.17 and 18.52mm/s respectively. While, combustion wave cannot propagate through the specimen of (3Ti-2BN-40wt%Cu). In (Ti-
2B-60wt%Cu)/(3Ti-2BN-x·Cu) bi-layered system, the features of the combustion wave change from bending toward the (3Ti-2BN-x·Cu) layer to cutting as wedge-shape to this layer as the x
increased. Besides, the effects of green densities of specimens compacted with p=12, 24, 84, 108MPa on the feature and combustion wave velocity were investigated.

Key words: combustion synthesis, bi-layered materials, combustion wave

CLC Number:

TQ174

CAO Wen-Bin,SHEN Wei-Ping,GE Chang-Chun,Grigoryan E H,Sytschev A E,Rogachev A S. Ti-2B-60wt%Cu)/(3Ti-2BN-x.Cu)[J]. Journal of Inorganic Materials.

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Ti-2B-60wt%Cu)/(3Ti-2BN-x.Cu)

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