Solid-gel precursor solutions and methods for the fabrication of polymetallicsiloxane coating films

Patent · Tue Apr 06 04:00:00 EDT 1993

OSTI ID:6045520

Toshifumi, Sugama

Solutions and preparation methods necessary for the fabrication of metal oxide cross-linked polysiloxane coating films are disclosed. The films are useful in provide heat resistance against oxidation, wear resistance, thermal insulation, and corrosion resistance of substrates. The sol-gel precursor solution comprises a mixture of a monomeric organoalkoxysilane, a metal alkoxide M(OR)[sub n] (wherein M is Ti, Zr, Ge or Al; R is CH[sub 3], C[sub 2]H[sub 5] or C[sub 3]H[sub 7]; and n is 3 or 4), methanol, water, HCl and NaOH. The invention provides a sol-gel solution, and a method of use thereof, which can be applied and processed at low temperatures (i.e., < 1,000 C.). The substrate can be coated by immersing it in the above mentioned solution at ambient temperature. The substrate is then withdrawn from the solution. Next, the coated substrate is heated for a time sufficient and at a temperature sufficient to yield a solid coating. The coated substrate is then heated for a time sufficient, and temperature sufficient to produce a polymetallicsiloxane coating.

• DOE Contract Number: AC02-76CH00016
• Assignee: Associated Universities, Inc., Washington, DC (United States)
• Patent Number(s): A; US 5200237
• Application Number: PPN: US 7-783169
• OSTI ID: 6045520
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360601 -- Other Materials-- Preparation &amp; Manufacture
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical &amp; Physicochemical Properties
ALCOHOLS
ALKALI METAL COMPOUNDS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
COATINGS
COMPOSITE MATERIALS
CORROSION RESISTANCE
DEPOSITION
DISPERSIONS
FABRICATION
GERMANIUM COMPOUNDS
HALOGEN COMPOUNDS
HEAT RESISTANT MATERIALS
HEAT TREATMENTS
HYDRIDES
HYDROCHLORIC ACID
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
INORGANIC ACIDS
MATERIALS
MECHANICAL PROPERTIES
METHANOL
MIXTURES
ORGANIC COMPOUNDS
ORGANIC SILICON COMPOUNDS
ORGANOMETALLIC COMPOUNDS
OXIDATION
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
POLYMERS
PRECURSOR
PROTECTIVE COATINGS
SILANES
SILICON COMPOUNDS
SILOXANES
SODIUM COMPOUNDS
SODIUM HYDROXIDES
SOL-GEL PROCESS
SOLIDIFICATION
SOLUTIONS
SUBSTRATES
SURFACE COATING
SYNTHESIS
THERMAL INSULATION
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
WATER
WEAR RESISTANCE
ZIRCONIUM COMPOUNDS