Effects of deposition temperature and time on HfC nanowires synthesized by CVD on SiC-coated C/C composites

Jincui Ren; Yulei Zhang; Jinhua Li; Song Tian; Tian Fei; Hejun Li

doi:10.1016/j.ceramint.2015.12.078

Effects of deposition temperature and time on HfC nanowires synthesized by CVD on SiC-coated C/C composites

Jincui Ren, Yulei Zhang, Jinhua Li, Song Tian, Tian Fei, Hejun Li

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

HfC nanowires were synthesized on SiC-coated carbon/carbon composites via a catalyst-assisted chemical vapor deposition (CVD) process from the HfCl₄-CH₄-H₂ system. The effects of deposition temperature (1273, 1323, 1373 and 1423 K) and time (20, 40, 60 and 90 min) on the formation and microstructure of HfC nanowires were investigated. The results showed that the diameter of HfC nanowires increased with the deposition temperature increasing; both the density and thickness of HfC nanowire films increased with the deposition time prolonging. The growth of HfC nanowires followed the bottom-type vapor-liquid-solid (VLS) mechanism.

Original language	English
Pages (from-to)	5623-5628
Number of pages	6
Journal	Ceramics International
Volume	42
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2015.12.078
State	Published - 1 Apr 2016

Keywords

CVD
HfC nanowires
Microstructure
VLS mechanism

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10.1016/j.ceramint.2015.12.078

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title = "Effects of deposition temperature and time on HfC nanowires synthesized by CVD on SiC-coated C/C composites",

abstract = "HfC nanowires were synthesized on SiC-coated carbon/carbon composites via a catalyst-assisted chemical vapor deposition (CVD) process from the HfCl4-CH4-H2 system. The effects of deposition temperature (1273, 1323, 1373 and 1423 K) and time (20, 40, 60 and 90 min) on the formation and microstructure of HfC nanowires were investigated. The results showed that the diameter of HfC nanowires increased with the deposition temperature increasing; both the density and thickness of HfC nanowire films increased with the deposition time prolonging. The growth of HfC nanowires followed the bottom-type vapor-liquid-solid (VLS) mechanism.",

keywords = "CVD, HfC nanowires, Microstructure, VLS mechanism",

author = "Jincui Ren and Yulei Zhang and Jinhua Li and Song Tian and Tian Fei and Hejun Li",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd and Techna Group S.r.l.",

year = "2016",

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doi = "10.1016/j.ceramint.2015.12.078",

language = "英语",

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TY - JOUR

T1 - Effects of deposition temperature and time on HfC nanowires synthesized by CVD on SiC-coated C/C composites

AU - Ren, Jincui

AU - Zhang, Yulei

AU - Li, Jinhua

AU - Tian, Song

AU - Fei, Tian

AU - Li, Hejun

PY - 2016/4/1

Y1 - 2016/4/1

N2 - HfC nanowires were synthesized on SiC-coated carbon/carbon composites via a catalyst-assisted chemical vapor deposition (CVD) process from the HfCl4-CH4-H2 system. The effects of deposition temperature (1273, 1323, 1373 and 1423 K) and time (20, 40, 60 and 90 min) on the formation and microstructure of HfC nanowires were investigated. The results showed that the diameter of HfC nanowires increased with the deposition temperature increasing; both the density and thickness of HfC nanowire films increased with the deposition time prolonging. The growth of HfC nanowires followed the bottom-type vapor-liquid-solid (VLS) mechanism.

AB - HfC nanowires were synthesized on SiC-coated carbon/carbon composites via a catalyst-assisted chemical vapor deposition (CVD) process from the HfCl4-CH4-H2 system. The effects of deposition temperature (1273, 1323, 1373 and 1423 K) and time (20, 40, 60 and 90 min) on the formation and microstructure of HfC nanowires were investigated. The results showed that the diameter of HfC nanowires increased with the deposition temperature increasing; both the density and thickness of HfC nanowire films increased with the deposition time prolonging. The growth of HfC nanowires followed the bottom-type vapor-liquid-solid (VLS) mechanism.

KW - CVD

KW - HfC nanowires

KW - Microstructure

KW - VLS mechanism

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U2 - 10.1016/j.ceramint.2015.12.078

DO - 10.1016/j.ceramint.2015.12.078

M3 - 文章

AN - SCOPUS:84953449664

SN - 0272-8842

VL - 42

SP - 5623

EP - 5628

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Effects of deposition temperature and time on HfC nanowires synthesized by CVD on SiC-coated C/C composites

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Keywords

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