Method of making heat treatable coated article with diamond-like carbon (DLC) coating
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05D-005/06
C23C-016/34
출원번호
US-0652858
(2003-09-02)
발명자
/ 주소
Veerasamy,Vijayen S.
출원인 / 주소
Guardian Industries Corp.
대리인 / 주소
Nixon &
인용정보
피인용 횟수 :
16인용 특허 :
34
초록▼
A method of making a coated article (e.g., window unit), and corresponding coated article are provided. A layer of or including diamond-like carbon (DLC) is formed on a glass substrate, preferably over at least one barrier layer. Then, a protective layer is formed on the substrate over the DLC inclu
A method of making a coated article (e.g., window unit), and corresponding coated article are provided. A layer of or including diamond-like carbon (DLC) is formed on a glass substrate, preferably over at least one barrier layer. Then, a protective layer is formed on the substrate over the DLC inclusive layer. During heat treatment (HT), the protective layer prevents the DLC inclusive layer from significantly burning off. Thereafter, the resulting coated glass substrate may be used as desired, it having been HT and including the protective DLC inclusive layer. The protective layer may be removed after HT.
대표청구항▼
The invention claimed is: 1. A method of making a heat treated coated article, the method comprising: providing a glass substrate; forming at least one layer comprising diamond-like carbon (DLC) on the glass substrate; forming a protective layer comprising zirconium nitride on the glass substrate o
The invention claimed is: 1. A method of making a heat treated coated article, the method comprising: providing a glass substrate; forming at least one layer comprising diamond-like carbon (DLC) on the glass substrate; forming a protective layer comprising zirconium nitride on the glass substrate over at least the layer comprising DLC; heat treating the glass substrate with the layer comprising DLC and the protective layer comprising zirconium nitride thereon so that during the heat treating the protective layer comprising zirconium nitride prevents significant burnoff of the layer comprising DLC, wherein the heat treating comprises heating the glass substrate to temperature(s) sufficient for thermal tempering, heat strengthening, and/or heat bending; and removing at least part of the protective layer comprising zirconium nitride after said heat treating. 2. The method of claim 1, wherein the layer comprising DLC is formed via an ion beam. 3. The method of claim 2, wherein the protective layer comprising zirconium nitride is at least partially formed on the glass substrate via sputtering. 4. The method of claim 1, further comprising sputtering a solar control multi-layer coating onto a surface of the glass substrate so that the solar control coating and the layer comprising DLC are formed on opposite sides of the glass substrate. 5. The method of claim 4, wherein the solar control coating comprises at least first and second dielectric layers, and an infrared (IR) reflecting layer comprising one of Ag and NiCr provided between the dielectric layers. 6. The method of claim 1, further comprising forming a barrier layer comprising silicon oxide and/or silicon nitride on the glass substrate so as to be located between at least the glass substrate and the layer comprising DLC. 7. The method of claim 1, further comprising, after said heat treating, coupling the glass substrate with the layer comprising DLC thereon to another glass substrate in making an IG window unit. 8. The method of claim 1, wherein the protective layer comprising zirconium nitride is doped with Ni and/or Cu. 9. The method of claim 1, wherein the heat treating comprises heating the glass substrate with the layer comprising DLC and the protective layer thereon using at least temperature(s) of at least 550 degrees C. 10. The method of claim 1, wherein the heat treating comprises heating the glass substrate with the layer comprising DLC and the protective layer thereon using at least temperature(s) of at least 580 degrees C. 11. The method of claim 1, wherein the layer comprising DLC comprises amorphous DLC and has more sp3 carbon-carbon bonds than sp2 carbon-carbon bonds. 12. The method of claim 11, wherein the layer comprising DLC has an average hardness of at least 10 GPa. 13. The method of claim 11, wherein the layer comprising DLC has an average hardness of at least 20 GPa. 14. The method of claim 1, wherein the layer comprising DLC has a density of at least about 2.7 gm/cm3, and wherein the layer comprising DLC is hydrogenated. 15. The method of claim 1, wherein the layer comprising DLC comprises hydrogenated highly tetrahedral amorphous carbon (ta-C:H). 16. The method of claim 1, wherein the protective layer comprising zirconium nitride is from 300 to 600 Å thick. 17. The method of claim 1, wherein the protective layer comprising zirconium nitride is from 450 to 480 Å thick. 18. A method of making a heat treated coated article, the method comprising: providing a glass substrate; forming at least one layer comprising diamond-like carbon (DLC) on the glass substrate; forming a protective layer comprising a nitride of zirconium and/or chromium on the glass substrate over at least the layer comprising DLC; heat treating the glass substrate with the layer comprising DLC and the protective layer comprising the nitride of zirconium and/or chromium thereon so that during the heat treating the protective layer prevents significant burnoff of the layer comprising DLC; and removing at least part of the protective layer comprising the nitride of zirconium and/or chromium after said heat treating. 19. The method of claim 18, wherein the layer comprising DLC is formed via an ion beam. 20. The method of claim 18, wherein the protective layer is at least partially formed via sputtering. 21. The method of claim 18, further comprising sputtering a solar control multi-layer coating onto a surface of the glass substrate so that the solar control coating and the layer comprising DLC are formed on opposite sides of the glass substrate. 22. The method of claim 21, wherein the solar control coating comprises at least first and second dielectric layers, and an infrared (IR) reflecting layer comprising one of Ag and NiCr provided between the dielectric layers. 23. The method of claim 18, further comprising forming a barrier layer on the glass substrate so as to be located between at least the glass substrate and the layer comprising DLC. 24. The method of claim 23, wherein the barrier layer comprises silicon oxide and/or silicon nitride, and wherein the method further comprises, after said heat treating, coupling the glass substrate with the layer comprising DLC thereon to another glass substrate to form an IG window unit. 25. The method of claim 18, wherein the protective layer comprising the nitride of zirconium and/or chromium is doped with Ni and/or Cu. 26. The method of claim 18, wherein the heat treating comprises heating the glass substrate with the layer comprising DLC and the protective layer thereon using at least temperature(s) of at least 550 degrees C. 27. The method of claim 18, wherein the layer comprising DLC comprises amorphous DLC and has more sp3 carbon-carbon bonds than sp2 carbon-carbon bonds. 28. The method of claim 27, wherein the layer comprising DLC has an average hardness of at least 10 GPa. 29. The method of claim 27, wherein the layer comprising DLC has a density of at least about 2.7 gm/cm3, and wherein the layer comprising DLC is hydrogenated. 30. The method of claim 18, wherein the protective layer comprising the nitride of zirconium and/or chromium is from 300 to 600 Å thick. 31. The method of claim 18, wherein the protective layer comprising the nitride of zirconium and/or chromium is from 450 to 480 Å thick. 32. The method of claim 18, wherein the protective layer comprises chromium nitride. 33. The method of claim 18, wherein the protective layer comprises a nitride of NiCr.
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