In:
Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 66 ( 2009-4), p. 191-193
Abstract:
In this study, boron nitride (BN) fibers were prepared via chemical method using boric acid as the raw material, under the atmosphere of NH3 and N2, respectively. Firstly, the boric acid was heated to melt in order to acquire B2O3 fibers. Secondly, the B2O3 fibers were pre-azotized under a NH3 atmosphere and held for 1 h at 970°C, and the sample was then sintered in N2 to the temperature of 2000°C and held for 1 h. The obtained samples were texted to analyze nitrogen content, morphology, tensile strength, and elastic modulus by neutralization titration, SEM, XRD and so on. The results show that the diameter of the BN fibers is ~ 4-6 μm with the nitrogen content of 54%, tensile strength of 1400 MPa, and elastic modulus of 120 GPa.
Type of Medium:
Online Resource
ISSN:
1662-8985
DOI:
10.4028/www.scientific.net/AMR.66
DOI:
10.4028/www.scientific.net/AMR.66.191
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2009
detail.hit.zdb_id:
2265002-7
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