Method of making coatings comprising an intermetallic compound and coatings made therewith
OwnerGeorge E. Talia, Fred J. Callahaninventors
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Abstract
A method for forming a metallic coating on a substrate comprising an intermetallic compound, and the coatings made by this method are disclosed. The method broadly comprises forming an alloyed agglomerate from a precursor comprising at least two metals suitable for forming an intermetallic compound and depositing a coating of the partially converted agglomerate onto a roughened surface of a substrate.
Claims48
A method of making particulates comprising an intermetallic compound comprising the steps of:
- (i) mixing at least two elemental metals to form a homogenous precursor suitable for forming an intermetallic compound;
- (ii) mechanically alloying said precursor to form said particulates;
- and
- (iii) reactively sintering said particulates at a temperature sufficient to change said particulates to a semi-solid/liquid state such that said particulates react into an intermetallic compound.
A method of making a metallic coating comprising the steps of:
- (i) forming an alloyed agglomerate from a precursor comprising at least two metals suitable for forming an intermetallic compound;
- (ii) reacting said agglomerate to partially convert said agglomerate to an intermetallic compound;
- (iii) depositing a coating of said partially converted agglomerate onto a roughened surface of a substrate;
- (iv) conditioning said coating to conform with a geometry of said substrate;
- and
- (v) reactively sintering said coating.
A method of making a metallic coating comprising the steps of:
- (i) forming an alloyed agglomerate from a precursor comprising at least two metals suitable for forming an intermetallic compound;
- (ii) depositing a coating of said partially converted agglomerate onto a roughened surface of a substrate;
- (iii) conditioning said coating to conform with a geometry of said substrate;
- and
- (iv) reactively sintering said coating.
A method of making a metallic coating comprising the steps of:
- (i) forming an alloyed agglomerate from a precursor comprising at least two metals suitable for forming an intermetallic compound;
- (ii) depositing a coating of said partially converted agglomerate onto a roughened surface of a substrate;
- and
- (iii) reactively sintering said coating.
A method of making a metallic coating comprising the steps of:
- (i) forming an alloyed agglomerate from a precursor comprising at least two metals suitable for forming an intermetallic compound;
- (ii) reacting said agglomerate to partially convert said agglomerate to an intermetallic compound;
- and
- (iii) depositing a coating of said partially converted agglomerate onto a roughened surface of a substrate.
A method of creating a bond with an intermetallic compound between a plurality substrates comprising:
- (i) depositing a combination of elemental metals onto a first substrate to form a soft, malleable, metallic film thereon, said combination of metals being suitable for forming an intermetallic compound;
- (ii) mechanically joining a second substrate to said first substrate with said film;
- (iii) reactively sintering said film by applying a temperature and pressure for a time period sufficient to react said film;
- and
- (iv) reactively sintering said film at a temperature sufficient to complete said reaction of said metals and form said intermetallic compound.
Dependencies are inferred from the claim text.