A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for preparing boron nitride fiber cloth by using precursor conversion
The invention specifically relates to a method for preparing boron nitride fiber cloth by using precursor conversion, which belongs to the technical field of ceramic materials. The method comprises the following steps: (1) subjecting boric acid to fusing and wire drawing so as to obtain single-bunch boric oxide fiber yarns; (2) stranding and cabling 2 to 10 boric oxide fiber yarns into a thick single-bunch boric oxide fiber yarn and braiding the thick single-bunch boric oxide fiber yarn to obtain boric oxide fiber cloth; (3) subjecting the boric oxide fiber cloth to low-temperature nitridation heat treatment in an ammonia gas atmosphere so as to obtain boric oxide fiber cloth; and (4) carrying out high-temperature heat treatment on the boric oxide fiber cloth. The method provided by the invention is simple, can easily realize large-scale production, overcomes the problem of incapable direct weaving due to insufficient strength of boron nitride fiber, and provides a basic raw material with excellent performance for preparation of high-temperature wave-transmitting materials, heatproof materials and battery diaphragms.
Method for preparing boron nitride fiber cloth by using precursor conversion
The invention specifically relates to a method for preparing boron nitride fiber cloth by using precursor conversion, which belongs to the technical field of ceramic materials. The method comprises the following steps: (1) subjecting boric acid to fusing and wire drawing so as to obtain single-bunch boric oxide fiber yarns; (2) stranding and cabling 2 to 10 boric oxide fiber yarns into a thick single-bunch boric oxide fiber yarn and braiding the thick single-bunch boric oxide fiber yarn to obtain boric oxide fiber cloth; (3) subjecting the boric oxide fiber cloth to low-temperature nitridation heat treatment in an ammonia gas atmosphere so as to obtain boric oxide fiber cloth; and (4) carrying out high-temperature heat treatment on the boric oxide fiber cloth. The method provided by the invention is simple, can easily realize large-scale production, overcomes the problem of incapable direct weaving due to insufficient strength of boron nitride fiber, and provides a basic raw material with excellent performance for preparation of high-temperature wave-transmitting materials, heatproof materials and battery diaphragms.
Method for preparing boron nitride fiber cloth by using precursor conversion
TANG JIE (author) / ZHANG MINGXIA (author) / WANG ZHONGHAI (author) / LI CHUANSHAN (author) / LI LING (author) / TANG JIANXIN (author) / QI XUELI (author) / LIN XUE (author) / LI RU (author) / HUANG JIAN (author)
2015-08-19
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Method for preparing boron-modified silicon nitride fiber
| European Patent Office | 2015
Method for preparing dense aluminum nitride-boron nitride composite material
| European Patent Office | 2015
Silicon nitride fiber production control system based on organic precursor conversion method
| European Patent Office | 2024
Gas-phase synthesis method of boron nitride ceramic precursor
| European Patent Office | 2021