1
Svante Prochazka: Sintered dense silicon carbide. General Electric Company, Jane M Binkowski, Joseph T Cohen, Jerome C Squillaro, January 25, 1977: US04004934 (106 worldwide citation)

A method of making a dense silicon carbide ceramic is disclosed involving the steps of homogeneously dispersing silicon carbide with a sufficient amount of a boron containing additive and a carbonaceous additive, forming the powder mixture into a shaped green body and then sintering the body in a co ...


2
Svante Prochazka: Dense polycrystalline silicon carbide. General Electric Company, Jane M Binkowski, Joseph T Cohen, Jerome C Squillaro, June 1, 1976: US03960577 (65 worldwide citation)

A dense silicon carbide material having improved electrically conducting properties is disclosed which is prepared by forming a homogeneous dispersion of silicon carbide, a sufficient amount of a boron containing additive, and 3.5-10.0% by weight of silicon nitride and hot pressing the dispersion at ...


3
Curtis A Johnson, Gary M Renlund, Charles E Van Buren, Svante Prochazka: Fabrication of small dense silicon carbide spheres. General Electric Company, Jane M Binkowski, James C Davis Jr, James Magee Jr, November 5, 1985: US04551436 (60 worldwide citation)

Spherical particles of polycrystalline silicon carbide having a density greater than 80% of the theoretical density for silicon carbide and having an average diameter ranging from about 10 microns to about 5000 microns are produced by forming spherical agglomerates of a sinterable silicon carbide po ...


4
Svante Prochazka: Silicon carbide sintered body. General Electric Company, Jane M Binkowski, Joseph T Cohen, Jerome C Squillaro, August 9, 1977: US04041117 (52 worldwide citation)

A silicon carbide sintered body characterized by its microstructural stability at high temperatures is produced by forming a mixture of .beta.-silicon carbide powder, .alpha.-silicon carbide seeding powder, boron additive and a carbonaceous additive into a green body and sintering it to produce a si ...


5
Richard J Charles, Svante Prochazka, Curtis E Scott: Alumina ceramic. General Electric Company, Jane M Binkowski, James C Davis Jr, Leo I MaLossi, August 25, 1981: US04285732 (49 worldwide citation)

A particulate dispersion of .alpha.-alumina, magnesium oxide and an additive selected from the group consisting of zirconium oxide, hafnium oxide and mixtures thereof, is formed into a green body and sintered in hydrogen producing a theoretically dense ceramic with improved optical transmission prop ...


6
Charles D Greskovich, Svante Prochazka: Si.sub.3 N.sub.4 formed by nitridation of sintered silicon compact containing boron. General Electric Company, Jane M Binkowski, Joseph T Cohen, Jerome C Squillaro, April 12, 1977: US04017319 (41 worldwide citation)

A polycrystalline silicon nitride body is produced by shaping a particulate mixture of silicon powder and boron into a green body, sintering the body to a density ranging from 60% to 75% of the theoretical density of silicon, said sintered body having pores which are interconnecting and open to the ...


7
D Sangeeta, Svante Prochazka, Krishan L Luthra: Method of making a ceramic composite by infiltration of a ceramic preform. General Electric Company, Noreen C Johnson, William H Pittman, May 13, 1997: US05628938 (39 worldwide citation)

A method for making a composite ceramic article by infiltration of a sintered ceramic preform with an infiltrate phase. The ceramic preform is made by directionally solidifying a liquid medium containing a dispersion of ceramic particles to produce a green, porous ceramic preform a plurality of inte ...


8
Svante Prochazka: Synthesis of mixed oxide composition. General Electric Company, Jane M Binkowski, James C Davis Jr, Leo I MaLossi, May 12, 1981: US04266978 (34 worldwide citation)

A non-aqueous gel of at least two metal oxides which is a precursor for glassy amorphous or crystalline mixed oxides is produced by reacting an alkoxide of one metal and a halide of another metal producing a low molecular weight polymeric reaction product, heating the reaction product to produce a p ...


9
Dominic A Cusano, Fred F Holub, Svante Prochazka: Ceramic-like scintillators. General Electric Company, Alexander M Gerasimow, Marvin Snyder, James C Davis, December 30, 1980: US04242221 (34 worldwide citation)

Scintillator bodies comprising fluorescent materials and having high optical translucency with low light absorption and methods of making the scintillator bodies are disclosed. In accordance with one embodiment of the invention, the scintillator bodies are formed by a hot-pressing process. In anothe ...


10
Svante Prochazka: Process for preparing semiconducting silicon carbide sintered body. General Electric Company, Jane M Binkowski, James C Davis Jr, Leo I MaLossi, June 24, 1980: US04209474 (32 worldwide citation)

A silicon carbide sintered body exhibiting N-type semiconductivity is produced by shaping a mixture of .beta.-silicon carbide, boron additive and a carbonaceous additive into a green body and sintering the body in an atmosphere containing nitrogen to produce a sintered body having a density of at le ...