The [alpha]-LiAl[O.sub.2] and [gamma]-LiAl[O.sub.2] (1: 1 molar ratio)  powders were used as the solid constituent of MCFC matrix.
To evaluate the matrix performance for gas sealing, a single MCFC was assembled.
The matrix is an important component in MCFC; every aspect of its production could influence the final performance of the cell.
The mixture of [gamma]-LiAl[O.sub.2] and [alpha]-LiAl[O.sub.2] could be used in preparing matrix due to its property of keeping the initial phases composition in MCFC environment.
MCFC electrolyte matrices were prepared by tape casting.
MCFC development has reached a point where cell stacks are being built and tested at commercial size and full height.
companies are receiving major funding from DOE and the private sector to develop MCFC technology: M-C Power Corp., in Burr Ridge, Ill.; and Energy Research Corp.
In December 1994, the industry consortium IMHEX, led by M-C Power, dedicated a 250-kW MCFC process development plant in Brea, Calif., for Unocal Corp.
Improved control strategies, operating procedures, and equipment designs have been defined for the MCFC program.
The Unocal MCFC plant is described as a "process development plant" because its equipment is not fully integrated and it uses an existing, nonoptimized fuel processor that will be replaced after the first demonstration.
Also, higher temperature MCFC and SOFC fuel cells now in development better match industrial electrical/thermal criteria.
Multi-kW PAFCs are entering the commercialization stage, and MCFC and SOFC units are in various stages of engineering development with commercialization activities started.