| 摘要 |
A heat resistant porous fuel cell matrix for holding liquid electrolyte in fuel cells which can be subjected to extreme temperature conditions without cracking and permanently deforming is made from a ceramic metal oxide such as magnesia, a binder such as an alkali metal phosphate, and a liquid phase sintering agent for the metal oxides such as lithium fluoride. To form the matrix, the matrix molding composition is formed containing a thoroughly mixed composition of a major portion of the ceramic metal oxide, and minor portions of the binder and liquid phase sintering agent. The composition is molded into suitable matrix form, and the binding agent is activated such as by heating to form a porous green matrix which has structural integrity at room temperature. The porous green matrix is then heated to a temperature above the melting point of the liquid phase sintering agent to cause substantial sintering between the metallic oxide particles and yield a thermal resistant porous fuel cell matrix.
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