Patents by Inventor Asoke C. Das Chaklander

Asoke C. Das Chaklander has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • In situ production of silicon carbide reinforced ceramic composites
    Patent number: 5011799
    Abstract: A method of producing ceramic composites of Al.sub.2 O.sub.3 reinforced by shaped SiC particles preferably shaped as fine particles (random), platelets, whiskers or fibres by in situ production of SiC particles by heating a mixture of carbon particles of the desired shape with silicates of Al.sub.2 O.sub.3 to a temperature above 1500.degree. C., convert the silicates and carbon to Al.sub.2 O.sub.3 and SiC to produce in situ SiC particles of the desired shape and provide a ceramic powder that may be densified by techniques such as hot pressing, isostatic pressing or sintering.
    Type: Grant
    Filed: September 14, 1990
    Date of Patent: April 30, 1991
    Inventors: Asoke C. Das Chaklander, Sankar Das Gupta