Article including ceramic structure
An article which includes a structure of a ceramic material that has a composition SiO x M z C y , where Si is silicon, O is oxygen, M is at least one metal and C is carbon and wherein x<2, y>0 and z<1 and x and z are non-zero.
1. An article comprising:
a structure including a ceramic material having a composition SiO x M z C y , where Si is silicon, O is oxygen, M is at least one metal and C is carbon and wherein x<2, y>0 and z<1 and x and z are non-zero, wherein the composition includes 1-20 at % of the at least one metal, and the at least one metal is selected from the group consisting of titanium, zirconium, hafnium, vanadium, chromium, niobium, tantalum, molybdenum, tungsten, rhenium, scandium, ytterbium, yttrium, lanthanum, neodymium, dysprosium, lutetium, magnesium, calcium, strontium, barium, and combinations thereof.
2. The article as recited in claim 1 , wherein the at least one metal is metal selected from a group consisting of titanium, zirconium, hafnium, vanadium, chromium and combinations thereof.
3. The article as recited in claim 1 , wherein the at least one metal is metal selected from a group consisting of niobium, tantalum, molybdenum, tungsten, rhenium and combinations thereof.
4. The article as recited in claim 1 , wherein the at least one metal is metal selected from scandium, ytterbium, yttrium, lanthanum, neodymium, dysprosium, lutetium, and combinations thereof.
5. The article as recited in claim 1 , wherein the at least one metal is metal selected from magnesium, calcium, strontium, barium, and combinations thereof.
6. The article as recited in claim 1 , wherein the structure is a substantially uniform thickness layer on a substrate selected from the group consisting of a superalloy material, a ceramic material, a glass or glass-ceramic, carbon or combinations thereof.
7. The article as recited in claim 1 , wherein the structure is a matrix in which a reinforcement phase is dispersed, the reinforcement phase is selected from the group consisting of a superalloy material, a ceramic material, a glass or glass-ceramic, carbon or combinations thereof.
8. The article as recited in claim 1 , wherein the structure consists of the ceramic material, and the ceramic material consists of the composition SiO x M z C y .
9. The article as recited in claim 1 , wherein the at least one metal includes hafnium.
10. The article as recited in claim 1 , wherein the at least one metal includes zirconium.
11. The article as recited in claim 1 , wherein the at least one metal is selected from the group consisting of ytterbium, yttrium, lanthanum, neodymium, dysprosium, lutetium, and combinations thereof.
12. The article as recited in claim 1 , wherein the at least one metal is selected form the group consisting of strontium, barium, and combinations thereof.
13. An article comprising:
a structure including a ceramic material having a composition SiO x M z C y , where Si is silicon, O is oxygen, M is at least one metal and C is carbon and wherein x<2, y>0 and z<1 and x and z are non-zero, wherein the at least one metal is selected from the group consisting of hafnium, niobium, tantalum, molybdenum, tungsten, rhenium and combinations thereof.
14. A machine comprising:
an article including a ceramic material having a composition SiO x M z C y , where Si is silicon, O is oxygen, M is at least one metal and C is carbon and wherein x<2, y>0 and z<1 and x and z are non-zero, wherein the composition includes 1-20 at % of the at least one metal, and the at least one metal is selected from the group consisting of titanium, zirconium, hafnium, vanadium, chromium, scandium, ytterbium, yttrium, lanthanum, neodymium, dysprosium, lutetium, magnesium, calcium, strontium, barium, and combinations thereof.
15. The machine as recited in claim 14 , including a compressor section, a combustor in fluid communication with the compressor section and a turbine section in fluid communication with the combustor, and wherein the article is within the compressor section, the combustor or the turbine section.
16. The machine as recited in claim 14 , including an augmentor section, wherein the article is within the augmentor section.