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US 6,838,162 B1Granted
Fiber-bundle-reinforced composite material having a ceramic matrix, method for manufacturing a composite material and method for manufacturing elements formed of a composite material
AssigneeSGL Technik GmbH
InventorsUdo Gruber, Michael Heine, Andreas Kienzle
Life of this patent
Estimating the term…
Abstract
A composite material includes a ceramic matrix and two different fractions of fiber bundles, namely a reinforcing fiber bundle fraction and a matrix fiber bundle fraction having different average fiber bundle lengths. The fractions of fiber bundles are separated in a total fiber bundle distribution relative to a fiber bundle length by a minimum. A method for manufacturing a composite material and a method for manufacturing elements formed of a composite material are also provided.
Claims22
A composite material, comprising:
- a ceramic matrix consisting of phases of silicon, carbon, and silicon carbide;
- and
- fiber bundles having two different fractions including a reinforcing fiber bundle fraction and a matrix fiber bundle fraction having lengths with different averages, each of said fiber bundles having a weight, said weights being proportional to said fiber bundle lengths, said weights being plotted to a graph of weight distribution versus fiber bundle length, said graph exhibiting a minimum between a first part of said distribution graph relating to said reinforcing fiber bundle fraction and a second part of said distribution graph relating to said matrix fiber bundle fraction;
- a portion of said fiber bundles having at least one protective layer.
1 more element
A composite material, comprising:
- a ceramic matrix consisting of phases of silicon, carbon, silicon carbide, and a phase selected from the group consisting of phases of aluminum, zirconium, silicon nitride, boron nitride, boron carbide, SiBCN, Al2O3, ZrO2, TiC, and an iron silicide;
- and
- fiber bundles having two different fractions including a reinforcing fiber bundle fraction and a matrix fiber bundle fraction having lengths with different averages, each of said fiber bundles having a weight, said weights being proportional to said fiber bundle lengths, said weights being plotted to a graph of weight distribution versus fiber bundle length, said graph exhibiting a minimum between a first part of said distribution graph relating to said reinforcing fiber bundle fraction and a second part of said distribution graph relating to said matrix fiber bundle fraction.
A composite material, comprising:
- a ceramic matrix consisting of phases of silicon, carbon, silicon carbide, and a phase selected from the group consisting of phases of aluminum, zirconium, silicon nitride, boron nitride, boron carbide, SiBCN, Al2O3, ZrO2, TiC, iron silicides, and additions selected from the group consisting of iron, chromium, titanium, molybdenum, and nickel;
- and
- fiber bundles having two different fractions including a reinforcing fiber bundle fraction and a matrix fiber bundle fraction having lengths with different averages, each of said fiber bundles having a weight, said weights being proportional to said fiber bundle lengths, said weights being plotted to a graph of weight distribution versus fiber bundle length, said graph exhibiting a minimum between a first part of said distribution graph relating to said reinforcing fiber bundle fraction and a second part of said distribution graph relating to said matrix fiber bundle fraction.
Dependencies are inferred from the claim text.