Abstract: Devices, methods, and systems are described for thick-film, screen-printable paste with inorganic frit for printing floating, non-contacting busbar line electrodes. Paste may be applied to crystalline solar cell emitter surfaces. The frit system contains both bismuth and boron. The described non-contacting busbar paste has superior solar cell performance compared to single-print conductor pastes.

Abstract: Devices, methods, and systems are described for thick-film paste with multiple discrete frits. The paste may be applied to contacting crystalline silicon solar cell emitter surfaces. Each frit contains both lead and tellurium. The described multiple discrete frit paste has superior solar cell performance compared with single frit pastes made from the individual discrete frits that make-up the multiple frit paste.

Abstract: A conductive ceramic composition is disclosed which consists essentially of alumina, chromia, and magnesia, and is suitable for use as target electrodes in electrostatic fiber charging applications. Ceramics are disclosed which have exhibit volume resistivities of 10.sup.12 ohm-cm or less at 20.degree. C., and have excellent electrical stability and superior mechanical properties; and an electrostatic charging apparatus is disclosed which employs a ceramic electronic conductor having a volume resistivity of from about 1.times.10.sup.7 to 5.times.10.sup.10 ohm-cm and a hardness of at least 5 GPa.

Abstract: A method for reducing X-Y shrinkage during firing of ceramic bodies in which a flexible constraining layer, which becomes porous during firing, is applied to the ceramic body such that the flexible constraining layer conforms closely to the surface of the unfired ceramic body as the assemblage is fired.

Abstract: Hydrogen fluoride-resistant articles are disclosed which have HF contact surfaces consisting essentially of sintered, single phase, polycrystalline, solid solution alumina and magnesia ceramic. The ceramic has a magnesia content equal to or less than the solubility limit of magnesia in alumina at the sintering temperature for the ceramic. Also disclosed are processes using such surfaces as HF contact surfaces.

Abstract: A composite comprising an unfired ceramic body comprising an admixture of finely divided particles of ceramic solids and sinterable inorganic binder dispersed in a volatilizable solid polymeric binder having affixed and closely conformed to a surface of said body a flexible constraining release layer comprising finely divided particles of non-metallic inorganic solids dispersed in a volatilizable solid polymeric binder, the sinterable inorganic binder of the ceramic body being such that Penetration of said binder into said constraining release layer during subsequent firing is no more than 50 .mu.m and said constraining release layer being affixed and closely conforming such that upon firing X-Y shrinkage of the ceramic body is reduced. Also, a method for making the composite. The flexible, constraining, release layer substantially reduces and controls green ceramic body shrinkage in the x- and y-directions during firing.

Abstract: A method for reducing X-Y shrinkage during firing of ceramic bodies in which a flexible constraining layer, which becomes porous during firing, is applied to the ceramic body such that the flexible constraining layer conforms closely to the surface of the unfired ceramic body as the assemblage is fired.

Abstract: A method for reducing X-Y shrinkage during firing of green ceramic bodies in which a release layer, which becomes porous during firing, is placed upon the ceramic body and the assemblage is fired while maintaining pressure on the assemblage normal to the body surface.