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公开(公告)号：US20200376454A1
公开(公告)日：2020-12-03
申请号：US16998309
申请日：2020-08-20
Applicant: GULL CORPORATION LTD
Inventor： Gary Gibson
Abstract: An apparatus for the manufacture of synthetic diamonds includes a pressure vessel having a chamber therein, and a body located in the chamber. The pressure vessel and the body are formed of materials having different coefficients of expansion. The coefficient of expansion of the body is greater than the coefficient of expansion of the pressure vessel. The pressure vessel is formed from a material having a melting point in excess of 1327° C. and capable of withstanding a pressure of at least 4.4 Gpa at a temperature of at least 1327° C. The chamber is configured to receive the body, and a carbon source, the apparatus further comprising a heating means configured to heat at least the body to a temperature at least of 1327° C. The coefficient of expansion of the body is selected such that upon heating thereof to at least 1327° C. the pressure exerted on the carbon source is at least 4.4 Gpa.
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公开(公告)号：US11623194B2
公开(公告)日：2023-04-11
申请号：US16998309
申请日：2020-08-20
Applicant: GULL CORPORATION LTD
Inventor： Gary Gibson
Abstract: An apparatus for the manufacture of synthetic diamonds includes a pressure vessel having a chamber therein, and a body located in the chamber. The pressure vessel and the body are formed of materials having different coefficients of expansion. The coefficient of expansion of the body is greater than the coefficient of expansion of the pressure vessel. The pressure vessel is formed from a material having a melting point in excess of 1327° C. and capable of withstanding a pressure of at least 4.4 Gpa at a temperature of at least 1327° C. The chamber is configured to receive the body, and a carbon source, the apparatus further comprising a heating means configured to heat at least the body to a temperature at least of 1327° C. The coefficient of expansion of the body is selected such that upon heating thereof to at least 1327° C. the pressure exerted on the carbon source is at least 4.4 Gpa.
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3.发明公开公开(公告)号：US20230241568A1
公开(公告)日：2023-08-03
申请号：US18298352
申请日：2023-04-10
Applicant: GULL CORPORATION LTD
Inventor： Gary Gibson
CPC classification number: B01J3/065 , B01J3/04 , C01B32/26 , C30B31/10 , B01J2203/062 , B01J2203/0625 , B01J2203/0655
Abstract: An apparatus for the manufacture of cubic Boron Nitride includes a pressure vessel having a chamber therein, and a body located in the chamber. The pressure vessel and the body are formed of materials having different coefficients of expansion. The coefficient of expansion of the body is greater than the coefficient of expansion of the pressure vessel. The pressure vessel is formed from a material having a melting point in excess of 1327° C. and capable of withstanding a pressure of at least 4.4Gpa at a temperature of at least 1327° C. The chamber is configured to receive the body, and a Boron Nitride source, the apparatus further comprising a furnace configured to heat at least the body to a temperature at least of 1327° C. The coefficient of expansion of the body is selected such that upon heating thereof to at least 1327° C. the pressure exerted on the Boron Nitride source is at least 4.4Gpa.
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