Ceramics comprising AIO, YO, ZrOand/or HfO, and NbOand/or TaOand methods of making the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C03C-010/02
C03C-010/00
출원번호
US-0526460
(2006-09-25)
등록번호
US-7253128
(2007-08-07)
발명자
/ 주소
Rosenflanz,Anatoly Z.
Schardt,Craig R.
출원인 / 주소
3M Innovative Properties Company
인용정보
피인용 횟수 :
2인용 특허 :
216
초록▼
Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the present invention can be made, formed as, or converted into optical waveguides, glass beads, articles (e.g., plates), fib
Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the present invention can be made, formed as, or converted into optical waveguides, glass beads, articles (e.g., plates), fibers, particles (e.g., abrasive particles), and thin coatings.
대표청구항▼
What is claimed is: 1. Glass-ceramic collectively comprising at least 70 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, and the glass containing not more than 30 percent by weight collectively As2O3, B2O3, G
What is claimed is: 1. Glass-ceramic collectively comprising at least 70 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, and the glass containing not more than 30 percent by weight collectively As2O3, B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5, based on the total weight of the glass-ceramic. 2. The glass-ceramic according to claim 1, wherein if Al2O3, at least one of Y2O3 or REO, and at least one of ZrO2 or HfO2 are present, the glass-ceramic comprises either not greater than 4 or at least 6 percent by weight of the at least one of Nb2O5 or Ta2O5, based on the total weight of the glass-ceramic. 3. The glass-ceramic according to claim 1, wherein if Al2O3, at least one of Y2O3 or REO, and at least one of ZrO2 or HfO2 are present, the glass-ceramic comprises at least 6 percent by weight of the at least one of Nb2O5 or Ta2O5, based on the total weight of the glass-ceramic. 4. The glass-ceramic according to claim 3 collectively comprising at least 75 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, based on the total weight of the glass-ceramic. 5. The glass-ceramic according to claim 3 collectively comprising at least 80 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, based on the total weight of the glass-ceramic. 6. The glass-ceramic according to claim 3 collectively comprising at least 85 percent by weight (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, based on the total weight of the glass-ceramic. 7. The glass-ceramic according to claim 3 collectively comprising at least 90 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, based on the total weight of the glass-ceramic. 8. The glass-ceramic according to claim 3 collectively comprising at least 95 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, based on the total weight of the glass-ceramic. 9. The glass-ceramic according to claim 3 collectively comprising at least 99 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, based on the total weight of the glass-ceramic. 10. The glass-ceramic according to claim 3 collectively comprising 100 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, based on the total weight of the glass-ceramic. 11. The glass-ceramic according to claim 3 collectively comprising at least 70 percent by weight of Al2O3, at least one of ZrO2 or HfO2, and at least one of Nb2O5 or Ta2O5, based on the total weight of the glass-ceramic. 12. The glass-ceramic according to claim 11, wherein the at least one of ZrO2 or HfO2 is present in an amount of at least 5 percent by weight, based on the total weight of the glass-ceramic. 13. The glass-ceramic according to claim 11, wherein the at least one of ZrO2 or HfO2 is present in an amount of at least 10 percent by weight, based on the total weight of the glass-ceramic. 14. The glass-ceramic according to claim 3 collectively comprising at least 70 percent by weight of Al2O3, Y2O3, and at least one of Nb2O5 or Ta2O5, based on the total weight of the glass-ceramic. 15. The glass-ceramic according to claim 14, wherein the at least one of Nb2O5 or Ta2O5 is present in an amount of at least 10 percent by weight, based on the total weight of the glass-ceramic. 16. The glass-ceramic according to claim 3 collectively comprising at least 70 percent by weight of Y2O3, at least one of ZrO2 or HfO2, and at least one of Nb2O5 or Ta2O5. 17. The glass-ceramic according to claim 16, wherein the at least one of Nb2O5 or Ta2O5 is present in an amount greater than 5 percent by weight, based on the total weight of the glass-ceramic. 18. The glass-ceramic according to claim 16, wherein the at least one of Nb2O5 or Ta2O5 is present in an amount of at least 10 percent by weight, based on the total weight of the glass-ceramic. 19. The glass-ceramic according to claim 3 collectively comprising at least 70 percent by weight of Al2O3, Y2O3, at least one of ZrO2 or HfO2, and at least one of Nb2O5 or Ta2O5, based on the total weight of the glass-ceramic. 20. The glass-ceramic according to claim 19, wherein the at least one of ZrO2 or HfO2 is present in an amount of at least 5 percent by weight, based on the total weight of the glass-ceramic. 21. The glass-ceramic according to claim 19, wherein the at least one of ZrO2 or HfO2 is present in an amount of at least 10 percent by weight, based on the total weight of the glass-ceramic. 22. A method for making glass-ceramic according to claim 3, the method comprising: heat-treating glass to convert at least a portion of the glass to crystalline ceramic and provide the glass-ceramic, the glass collectively comprising at least 70 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, and the glass containing not more than 30 percent by weight collectively As2O3, B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5. 23. A method for making glass-ceramic according to claim 3, the method comprising: heat-treating ceramic comprising glass to convert at least a portion of the glass to crystalline ceramic to provide the glass-ceramic, the glass collectively comprising at least 70 percent by weight of (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2, and the glass containing not more than 30 percent by weight collectively As2O3, B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5. 24. The glass-ceramic according to claim 1 in the form of an IR window.
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