A ceramic composite material, for example, a ceramic molded body or a layer obtained by pyrolysis of a starting mixture, containing at least one polymer precursor material and at least one filler, which has an average particle size of less than 200 nm. Such a composite material may be used, for exam
A ceramic composite material, for example, a ceramic molded body or a layer obtained by pyrolysis of a starting mixture, containing at least one polymer precursor material and at least one filler, which has an average particle size of less than 200 nm. Such a composite material may be used, for example, for producing fibers, filters, catalyst support materials, ceramic sheathed-element glow plugs, metal-containing reactive composite materials, porous protective shells for sensors, ceramic or partially ceramic coatings or microstructured ceramic components.
대표청구항▼
1. A ceramic composite material comprising a matrix and nano-scale inclusions obtained by pyrolysis of a starting mixture, said starting mixture comprising:at least one polymer precursor material; andat least one filler, wherein the filler has an average particle size less than 200 nm;and the at lea
1. A ceramic composite material comprising a matrix and nano-scale inclusions obtained by pyrolysis of a starting mixture, said starting mixture comprising:at least one polymer precursor material; andat least one filler, wherein the filler has an average particle size less than 200 nm;and the at least one filler includes boron oxide. 2. The ceramic composite material of claim 1, wherein the filler includes a powder having an average powder particle size of less than 200 nm, and the powder particles are one of primary particles having an average particle size of between 5 nm and 80 nm, and aggregates of the primary particles. 3. The ceramic composite material of claim 1, wherein the at least one filler further includes a material that decomposes thermally during pyrolysis and forms at least some pores, and the average size of the pores is less than 200 nm. 4. The ceramic composite material of claim 1, wherein the at least one filler further includes one of the following:at least one of an oxide, nitride, boride of silicon, carbide of silicon, aluminum, titanium, zirconium, tungsten, vanadium, hafnium, niobium, tantalum, and molybdenum, anda mixture of at least one of oxycarbides, oxynitrides, carbonitrides, and oxycarbonitrides. 5. The ceramic composite material of claim 1, wherein the at least one filler further includes at least one of a metallic filler and a filler containing one of gold particles, palladium particles, platinum particles, rhodium particles and iridium particles. 6. The ceramic composite material of claim 1, wherein the at least one filler further includes an organic filler. 7. The ceramic composite material of claim 1, wherein the at least one filler further includes at least one of silicon dioxide, silicon dioxide having at least one of a carbonaceous and a hydrophilic surface modification, pyrogenic silicic acid and silicic acid having at least one of a carbonaceous and a hydrophilic surface modification. 8. The ceramic composite material of claim 1, wherein an open porosity of the composite material is between 1% and 50%. 9. The ceramic composite material of claim 1, wherein the polymer precursor material includes organosilicon polymer compound. 10. The ceramic composite material of claim 1, wherein the starting mixture includes at least one of a stabilizer and a solvent. 11. The ceramic composite material of claim 1, wherein an amount of the at least one filler is between 2% and 50% by volume. 12. The ceramic composite material of claim 1, wherein the starting mixture includes a catalyst material that one of initiates and accelerates crosslinking of the polymer precursor material at least one of before and during pyrolysis. 13. The ceramic composite material of claim 1, wherein the at least one filler has a BET surface area of at least 50 m 2 /g. 14. The ceramic composite material of claim 1, wherein the starting mixture includes a second filler. 15. The ceramic composite material of claim 1, wherein the starting mixture includes a first filler that is at least 9 vol % and a second filler that is less than 7 vol %. 16. A method of using a ceramic composite material obtained by pyrolysis of a starting mixture, the method comprising:providing the ceramic composite material obtained by pyrolysis of the starting mixture, the ceramic composite material including at least one polymer precursor material, and at least one filler, wherein the filler includes boron oxide and has an average particle size of less than 200 nm; andforming the ceramic composite material to produce at least one of a fiber, a lightweight structural material, a filter, a catalyst support material, a ceramic sheathed-element glow plug, a metal-containing reactive composite material, a porous protective shell for a sensor, a ceramic coating, a partially ceramic coating and a microstructured ceramic component. 17. The ceramic composite material of claim 1, wherein the ceramic composite material includes one of a ceramic molded body and a l ayer. 18. The ceramic composite material of claim 3, wherein the average size of the pores is between 5 nm and 100 nm. 19. The ceramic composite material of claim 6, wherein the organic filler includes a filler containing nanoscale carbon particles. 20. The ceramic composite material of claim 1, wherein an amount of the boron oxide is between 10 wt % and 30 wt %. 21. The ceramic composite material of claim 9, wherein the organosilicon polymer compound includes polysiloxane. 22. The ceramic composite material of claim 12, wherein the catalyst material includes one of aluminum acetylacetonate and zirconium acetylacetonate. 23. The ceramic composite material of claim 13, wherein the BET surface area is between 90 m 2 /g and 450 m 2 /g. 24. A ceramic composite material obtained by pyrolysis of a starting mixture, comprising:at least one polymer precursor material; anda first filler, wherein the first filler has an average particle size of less than 200 nm;wherein the starting mixture includes a second filler; andwherein the second filler includes an aluminum compound. 25. The ceramic composite material of claim 24, wherein the aluminum compound includes Al 2 O 3 , the Al 2 O 3 having an average particle size of between 500 nm and 3 μm. 26. The ceramic composite material of claim 15, wherein the second filler is less than 3 vol %.
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이 특허에 인용된 특허 (7)
Oshima Kenji (9-7-1142 Aichi JPX) Ito Tsugio (9-7-1142 Aichi JPX) Kato Yoshitsugu (9-7-1142 Aichi JPX) Niihara Koichi (9-7-1142 Kourigaoka ; Hirakata ; Osaka JPX) Nakahira Atsushi (Osaka JPX) Iwata M, Carbon fiber reinforced silicon nitride based nanocomposite material and method for preparing same.
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