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

Abstract

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 The substrate is then withdrawn from the solution.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.

Inventors:
Issue Date:
OSTI Identifier:
6045520
Patent Number(s):
5200237 A
Application Number:
PPN: US 7-783169
Assignee:
Associated Universities, Inc., Washington, DC (United States)
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Patent
Resource Relation:
Patent File Date: 28 Oct 1991
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; POLYMERS; CHEMICAL PREPARATION; PROTECTIVE COATINGS; SILOXANES; CHEMICAL COMPOSITION; COMPOSITE MATERIALS; CORROSION RESISTANCE; FABRICATION; GERMANIUM COMPOUNDS; HEAT RESISTANT MATERIALS; HEAT TREATMENTS; HYDROCHLORIC ACID; METHANOL; ORGANOMETALLIC COMPOUNDS; OXIDATION; PRECURSOR; SILANES; SODIUM HYDROXIDES; SOL-GEL PROCESS; SOLIDIFICATION; SOLUTIONS; SUBSTRATES; SURFACE COATING; THERMAL INSULATION; TITANIUM COMPOUNDS; WATER; WEAR RESISTANCE; ZIRCONIUM COMPOUNDS; ALCOHOLS; ALKALI METAL COMPOUNDS; CHEMICAL REACTIONS; CHLORINE COMPOUNDS; COATINGS; DEPOSITION; DISPERSIONS; HALOGEN COMPOUNDS; HYDRIDES; HYDROGEN COMPOUNDS; HYDROXIDES; HYDROXY COMPOUNDS; INORGANIC ACIDS; MATERIALS; MECHANICAL PROPERTIES; MIXTURES; ORGANIC COMPOUNDS; ORGANIC SILICON COMPOUNDS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; SILICON COMPOUNDS; SODIUM COMPOUNDS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS; 400201* - Chemical & Physicochemical Properties; 360601 - Other Materials- Preparation & Manufacture

Citation Formats

Toshifumi, Sugama. Solid-gel precursor solutions and methods for the fabrication of polymetallicsiloxane coating films. United States: N. p., 1993. Web.
Toshifumi, Sugama. Solid-gel precursor solutions and methods for the fabrication of polymetallicsiloxane coating films. United States.
Toshifumi, Sugama. Tue . "Solid-gel precursor solutions and methods for the fabrication of polymetallicsiloxane coating films". United States.
@article{osti_6045520,
title = {Solid-gel precursor solutions and methods for the fabrication of polymetallicsiloxane coating films},
author = {Toshifumi, Sugama},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {4}
}