1998年11月
Preparation of high-temperature filter by pressure-pulsed chemical vapour infiltration of SiC into carbonized paper-fibre preforms
JOURNAL OF MATERIALS SCIENCE
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- 巻
- 33
- 号
- 21
- 開始ページ
- 5259
- 終了ページ
- 5264
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1023/A:1004448424084
- 出版者・発行元
- SPRINGER
SiC was partially infiltrated into three types of carbonized paper-fibre preforms using pressure-pulsed chemical vapour infiltration from SiCl(4)(4%)-CH(4)(4%)-H(2) at 1100 degrees C (A-type preforms, source fibres of filter paper; B(H)- and B(L)-type preforms, source fibres of recycled paper). The porosity of the preforms decreased linearly with the number of pulses. After 10 000 pulses, the porosity of A-, B(H)- and B(L)-type samples was 77, 78 and 85%, respectively. Average pore sizes of A-, B(H)- and B(L)-type samples after 10 000 pulses were about 5.0, 2.7 and 7.0 mu m, respectively. On an A-type sample of 10 mm phi and 5 mm long after 10 000 pulses, pressure drop along the direction of axial air flow was 10 kPa at a face velocity of 0.8 m s(-1). The order of pressure drop was B(H) > A >B(L). Flexural strength of A-type sample reached 10 MPa after 15 000 pulses. (C) 1998 Kluwer Academic Publishers.
- リンク情報
- ID情報
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- DOI : 10.1023/A:1004448424084
- ISSN : 0022-2461
- CiNii Articles ID : 80010875882
- Web of Science ID : WOS:000078834000024