Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1990-07-12
1992-04-28
Cashion, Jr., Merrell C.
Stock material or miscellaneous articles
Composite
Of inorganic material
428697, 428698, 428900, 20419215, 20419216, 2041922, G11B 566
Patent
active
051088460
ABSTRACT:
The novel polycrystalline, unoriented or X-ray amorphous carbide, oxide and/or nitride ceramics which have the elemental composition I ##STR1## where M is at least one element from the group consisting of titanium, zirconium, hafnium, thorium, scandium, yttrium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, rhenium, iron, cobalt, nickel, ruthenium, rhodium, copper, zinc, magnesium, calcium, strontium, barium, boron, aluminum, gallium, indium, thallium, tin, lead, phosphorus, arsenic, antimony, bismuth and tellurium and x is from 0.01 to 0.7, can be used, in the form of thin layers, as diffusion barriers, anticorrosion layers or interference layers, for protecting surfaces from mechanical abrasion or for protecting magneto-optical recording layers from corrosion. These novel thin polycrystalline, unoriented or X-ray amorphous layers of germanium ceramics can be prepared with the aid of reactive sputtering or reactive magnetron sputtering of a target which consists of the abovementioned elemental composition I.
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Cashion Jr. Merrell C.
Follett Robert J.
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