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Method of fabricating high-permittivity dielectric material
Nano-sized particles of barium-titanate are heated as a gas mixture of 25% hydrogen and 75% nitrogen is passed there through yielding particles of barium-titanate having oxygen vacancies therein. The particles of barium-titanate having oxygen vacancies therein are coated with silica yielding silica-coated particles having a silica coating thickness in a range of 2-5 nanometers. The silica-coated particles are sintered by application of pressure in a range of 35-50 megapascals and temperature in a range of 950-1050° C. The sintered quantity of material is cooled at a cooling rate in a range of 1-3° C. per minute at least until the temperature thereof is less than 120° C.
Method of fabricating high-permittivity dielectric material
Nano-sized particles of barium-titanate are heated as a gas mixture of 25% hydrogen and 75% nitrogen is passed there through yielding particles of barium-titanate having oxygen vacancies therein. The particles of barium-titanate having oxygen vacancies therein are coated with silica yielding silica-coated particles having a silica coating thickness in a range of 2-5 nanometers. The silica-coated particles are sintered by application of pressure in a range of 35-50 megapascals and temperature in a range of 950-1050° C. The sintered quantity of material is cooled at a cooling rate in a range of 1-3° C. per minute at least until the temperature thereof is less than 120° C.
Method of fabricating high-permittivity dielectric material
TUCKER DENNIS S (author) / ROLIN TERRY D (author) / HILL CURTIS W (author)
2022-01-25
Patent
Electronic Resource
English
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