Herbert M. Strong - Schenectady NY Richard M. Chrenko - Scotia NY Roy E. Tuft - Guilderland Center NY
Assignee:
General Electric Company - Schenectady NY
International Classification:
C01B 3106
US Classification:
423446
Abstract:
Type Ib synthetic diamond crystal is annealed at an annealing temperature ranging from about 1500. degree. C. to about 2200. degree. C. under a pressure which prevents significant graphitization of the diamond during the annealing to convert at least about 20% of the total amount of type Ib nitrogen present in the crystal to type Ia nitrogen.
Annealing Type Ib Or Mixed Type Ib-Ia Natural Diamond Crystal
Herbert M. Strong - Schenectady NY Richard M. Chrenko - Scotia NY Roy E. Tuft - Guilderland Center NY
Assignee:
General Electric Company - Schenectady NY
International Classification:
C01B 3106
US Classification:
423446
Abstract:
Type Ib or mixed type Ib-Ia natural diamond crystal is annealed at an annealing temperature ranging from about 1500. degree. C to about 2200. degree. C under a pressure which prevents significant graphitization of the diamond during the annealing to convert at least 20% of the total amount of type Ib nitrogen present in the crystal to type Ia nitrogen.
Process For Reducing Stress Corrosion In A Weld By Applying An Overlay Weld
Rodney E. Hanneman - Burnt Hills NY Richard M. Chrenko - Scotia NY Donald B. Kittle - Scotia NY
Assignee:
General Electric Company - Schenectady NY
International Classification:
B23K 904
US Classification:
228225
Abstract:
The stress corrosion tendency of a welded pipe in service in a nuclear reactor water line is reduced by applying to the outside of the pipe a secondary weld bridging the primary weld of the joint beyond the axial extremities of the primary weld heat affected zone and particularly that part of the zone at the inner surface of the pipe.