TY - JOUR
T1 - SHS of YBa2Cu3O6+x using large copper particles
AU - Lin, Sy Chyi
AU - Li, Dong X.
AU - Semiat, R.
AU - Richardson, James T.
AU - Luss, Dan
N1 - Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
PY - 1993/12/1
Y1 - 1993/12/1
N2 - YBa2Cu3O6+x was produced by self-propagating high-temperature synthesis (SHS) from copper, barium peroxide, and yttrium oxide. In contrast to previous studies, a stable reaction front coule be maintained even when using relatively large copper particles (smaller than 325 mesh). Large pellets (larger than 22 mm in diameter) were combusted at room temperature. Elevated ambient temperatures (400-500°C) were used to stabilize the combustion front movements in small pellets. A high-quality product may be obtained by a very short sintering at 950-970°C in an oxygen atmosphere following the SHS. The influence of copper-particle size, starting density and post-heat treatment were studied. An explanation of the influence of the copper particle size on the reaction stability is proposed.
AB - YBa2Cu3O6+x was produced by self-propagating high-temperature synthesis (SHS) from copper, barium peroxide, and yttrium oxide. In contrast to previous studies, a stable reaction front coule be maintained even when using relatively large copper particles (smaller than 325 mesh). Large pellets (larger than 22 mm in diameter) were combusted at room temperature. Elevated ambient temperatures (400-500°C) were used to stabilize the combustion front movements in small pellets. A high-quality product may be obtained by a very short sintering at 950-970°C in an oxygen atmosphere following the SHS. The influence of copper-particle size, starting density and post-heat treatment were studied. An explanation of the influence of the copper particle size on the reaction stability is proposed.
UR - http://www.scopus.com/inward/record.url?scp=0027800604&partnerID=8YFLogxK
U2 - 10.1016/0921-4534(93)90275-U
DO - 10.1016/0921-4534(93)90275-U
M3 - 文章
AN - SCOPUS:0027800604
VL - 218
SP - 130
EP - 136
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -