ISSN:
0021-8995
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Alumina fibers were obtained from the poly[((3-ethoxypropanoyl)oxy)aloxane] (P-3EPA) by using a polymeric precursor technology. The rheological properties of the concentrated solution of P-3EPA related to the extrusion and spinning processes have been investigated to determine the processability into fine filaments. Thirty weight percent P-3EPA dissolved into toluene showed an excellent spinnability and fine filaments of 20-30 μm in diameter were easily obtained. The phase changes during the sintering of the fiber were studied with wide-angle X-ray diffraction and were shown to be strongly related to the mechanical properties of the fiber. Further the addition of the ethyl silicate (ES) as a sintering agent which prevent the crystal growth of Al2O3 was found to be effective to improve the mechanical properties of the alumina fiber.
Additional Material:
17 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/app.1990.070400512
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