PREPARATION OF MICRO-COILED CARBON-FIBERS BY METAL POWDER-ACTIVATED PYROLYSIS OF ACETYLENE CONTAINING A SMALL AMOUNT OF SULFUR-COMPOUNDS

被引：78

作者：

MOTOJIMA, S ^{[1
]}

ITOH, Y ^{[1
]}

ASAKURA, S ^{[1
]}

IWANAGA, H ^{[1
]}

机构：

[1] NAGASAKI UNIV,FAC LIBERAL ARTS,NAGASAKI 852,JAPAN

来源：

JOURNAL OF MATERIALS SCIENCE | 1995年 / 30卷 / 20期

关键词：

D O I：

10.1007/BF00356048

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Micro-coiled carbon fibres were prepared by the transition metal-activated pyrolysis of acetylene containing a small amount of sulphur compounds, and the preparation conditions were examined in detail. The coiled carbon fibres grew at the reaction temperatures of 700-850 degrees C and thiophene gas flow rates of 0.14-0.45 standard cm(3) min(-1) (0.10-0.35 vol% reaction atmosphere). The optimum values depended on the type of metal catalysts used. Among the metal catalysts used, nickel, titanium and tungsten were the most effective for the growth of the coiled carbon fibres and a maximum yield of about 50%-55% was obtained. The bulk resistivity of the coiled carbon fibres decreased with increasing bulk density and was 10(0) S-1 cm at a bulk density of 1.

引用

页码：5049 / 5055

页数：7

共 6 条

[1] VAPOR-PHASE PREPARATION OF MICRO-COILED CARBON-FIBERS BY METAL-POWDER CATALYZED PYROLYSIS OF ACETYLENE CONTAINING A SMALL AMOUNT OF PHOSPHORUS IMPURITY
MOTOJIMA, S
HASEGAWA, I
KAGIYA, S
ANDOH, K
IWANAGA, H
CARBON, 1995, 33 (08) : 1167 - 1173
[2] EFFECT OF METAL IMPURITIES ON THE GROWTH OF MICRO-COILED CARBON-FIBERS BY PYROLYSIS OF ACETYLENE
MOTOJIMA, S
ASAKURA, S
HIRATA, M
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1995, 34 (01): : L9 - L11
[3] PREPARATION AND PROPERTIES OF COILED CARBON-FIBERS BY THE CATALYTIC PYROLYSIS OF ACETYLENE
MOTOJIMA, S
HASEGAWA, I
KAGIYA, S
ASAKURA, S
KAWAGUCHI, M
IWANAGA, H
JOURNAL DE PHYSIQUE IV, 1993, 3 (C3): : 599 - 606
[4] PREPARATION OF COILED CARBON-FIBERS BY PYROLYSIS OF ACETYLENE USING A NI CATALYST AND SULFUR OR PHOSPHORUS COMPOUND IMPURITY
MOTOJIMA, S
HASEGAWA, I
KAGIYA, S
MOMIYAMA, M
KAWAGUCHI, M
IWANAGA, H
APPLIED PHYSICS LETTERS, 1993, 62 (19) : 2322 - 2323
[5] PREPARATION OF COILED CARBON-FIBERS BY CATALYTIC PYROLYSIS OF ACETYLENE, AND ITS MORPHOLOGY AND EXTENSION CHARACTERISTICS
MOTOJIMA, S
KAWAGUCHI, M
NOZAKI, K
IWANAGA, H
CARBON, 1991, 29 (03) : 379 - 385
[6] PREPARATION OF MICRO-COILED TIC FIBERS BY METAL IMPURITY-ACTIVATED CHEMICAL-VAPOR-DEPOSITION
MOTOJIMA, S
IWANAGA, H
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1995, 34 (2-3): : 159 - 163

← 1 →