Patents by Inventor Oleg Nikolaevich Breusov

Oleg Nikolaevich Breusov 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).

  • Method of producing wurtzite-like boron nitride
    Patent number: 4014979
    Abstract: A powder of boron nitride having a graphite structure is mixed with cooling additives having a shock impedance different from that of the boron nitride having a wurtzite structure being formed. The resulting mixture is placed into a protective device, said device being then placed in an explosive charge ensuring the generation of a shock wave having an intensity of not less than 100 kbar.The wurtzite-like boron nitride thus produced has a pycnometric density of 3.10 to 3.38 g/cm.sup.3, a specific surface area of not less than 10 m.sup.2 g, a temperature of transition into graphite-like boron nitride of about 700.degree. C and a refractive index less than 2.10 for red light.
    Type: Grant
    Filed: July 3, 1975
    Date of Patent: March 29, 1977
    Inventors: Anatoly Nikolaevich Dremin, Oleg Nikolaevich Breusov, Tamara Vasilievna Bavina, Sergei Vladimirovich Pershin