The Library
Structural properties of multi-component silicon oxycarbide glasses derived from metal alkoxide precursors
Tools
UNSPECIFIED (1996) Structural properties of multi-component silicon oxycarbide glasses derived from metal alkoxide precursors. JOURNAL OF NON-CRYSTALLINE SOLIDS, 204 (3). pp. 217-227. ISSN 0022-3093.
Research output not available from this repository.
Request-a-Copy directly from author or use local Library Get it For Me service.
Abstract
Existing sol-gel polymerisation/pyrolysis routes employed to form simple silicon oxycarbide (Si-O-C) glass compositions have been adapted to form more complex, multi-component glasses based on borosilicon oxycarbide (B-Si-O-C) and aluminosilicon oxycarbide (Al-Si-O-C) systems. Each system has been characterised at the gel, glass and glass ceramic stage by X-ray powder diffraction (XRD), Si-29, Al-27 and B-11 magic angle spinning nuclear magnetic resonance (MAS NMR) and transmission electron microscopy (TEM). The boron component of the B-Si-O-C glass system exhibited predominantly BO3 coordination. The Al component of the Al-Si-O-C glass system exhibited combinations of tetrahedral, pentacoordinated and octahedral coordination over a range of pyrolysis temperatures. For both systems Si-C bonds were formed and retained throughout the hydrolysis, polymerisation and inert atmosphere pyrolysis stages with evidence of beta-SiC crystallisation at elevated temperatures (> 1300 degrees C). Crystallisation of both spinel and mullite phases has also been observed at elevated temperatures (> 1300 degrees C) in the Al-Si-O-C glass system.
Item Type: | Journal Article | ||||
---|---|---|---|---|---|
Subjects: | T Technology > TP Chemical technology T Technology > TA Engineering (General). Civil engineering (General) |
||||
Journal or Publication Title: | JOURNAL OF NON-CRYSTALLINE SOLIDS | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0022-3093 | ||||
Official Date: | October 1996 | ||||
Dates: |
|
||||
Volume: | 204 | ||||
Number: | 3 | ||||
Number of Pages: | 11 | ||||
Page Range: | pp. 217-227 | ||||
Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
Request changes or add full text files to a record
Repository staff actions (login required)
View Item |