Repair of zirconia-based thermal barrier coatings
    1.
    发明申请
    Repair of zirconia-based thermal barrier coatings 审中-公开
    修复氧化锆基热障涂层

    公开(公告)号:US20050129868A1

    公开(公告)日:2005-06-16

    申请号:US10733740

    申请日:2003-12-11

    CPC分类号: H05H1/42 C23C4/01 C23C4/11

    摘要: A method of depositing a zirconia-based ceramic coating (24) using a low velocity oxy-fuel (LVOF) process. Particles of zirconia (14) are mixed with second constituent particles (16) of a material having a melting temperature sufficiently low to be successfully deposited by an LVOF process. The second constituent particles may have a coefficient of thermal expansion within 30% of that of the zirconia particles, and/or they may have a thermal conductivity less than or no more than 20% higher that that of the zirconia particles. The second constituent particles may include calcium titanate, strontium titanate or sodium-zirconium-phosphate-silicate (NZPS). The capability to deposit the zirconia-containing particle mix with an LVOF process facilitates the in-situ repair of a component having a damaged zirconia-based thermal barrier coating.

    摘要翻译: 使用低速氧 - 燃料(LVOF)工艺沉积氧化锆基陶瓷涂层(24)的方法。 氧化锆(14)的颗粒与熔融温度足够低的材料的第二组分颗粒(16)混合,以通过LVOF工艺成功沉积。 第二组分颗粒可以具有在氧化锆颗粒的30%以内的热膨胀系数,和/或它们的热导率可以低于或高于氧化锆颗粒的20%以上。 第二构成颗粒可以包括钛酸钙,钛酸锶或磷酸锆 - 磷酸盐 - 硅酸盐(NZPS)。 使用LVOF工艺沉积含氧化锆的颗粒混合物的能力有助于原位修复具有损坏的基于氧化锆的热障涂层的组分。

    Crystalline zirconia and method of synthesis
    3.
    发明授权
    Crystalline zirconia and method of synthesis 失效
    结晶氧化锆及其合成方法

    公开(公告)号:US07758977B2

    公开(公告)日:2010-07-20

    申请号:US11777667

    申请日:2007-09-07

    IPC分类号: B32B9/00

    摘要: Novel, monodispersed, spherical ZrO2 particles in the size range of approximately 10 to approximately 600 nm exhibiting metastable tetragonal crystal structure at room temperature and novel methods of preparation. The ZrO2 particles are approximately 100% in the tetragonal phase at room temperature and can be pure and free of foreign oxides. The novel method can include mixing zirconium-alkoxide and an alcohol, forming preparation one, followed by separately dissolving completely de-ionized water and a polymeric steric stabilizer in an alcohol forming preparation two. Next the preparations can be mixed with vigorous stirring while subjecting the materials to hydrolysis and condensation reactions with very slow stirring. Next, there is waiting for the formation of a sol from the mixture, followed by drying at approximately 80 degrees C. to form resultant material followed by crushing the resultant material.

    摘要翻译: 在室温下具有大约10至大约600nm的尺寸范围的新型单分散的球形ZrO 2颗粒显示出亚稳的四方晶体结构和新的制备方法。 ZrO 2颗粒在室温下在四方相中约为100%,可以是纯的,不含外来氧化物。 该新方法可以包括将锆 - 醇盐和醇混合,形成制剂1,然后将完全去离子水和聚合空间稳定剂单独溶解在醇形成制剂中。 接下来,可以在剧烈搅拌下混合制剂,同时以非常缓慢的搅拌使材料进行水解和缩合反应。 接下来,等待从混合物中形成溶胶,然后在约80℃下干燥以形成所得材料,然后粉碎所得材料。

    SYNTHESIS OF TETRAGONAL PHASE STABILIZED NANO AND SUBMICRON SIZED NANOPARTICLES
    6.
    发明申请
    SYNTHESIS OF TETRAGONAL PHASE STABILIZED NANO AND SUBMICRON SIZED NANOPARTICLES 失效
    三相稳定化纳米和纳米尺寸纳米粒子的合成

    公开(公告)号:US20090252669A1

    公开(公告)日:2009-10-08

    申请号:US12321097

    申请日:2009-01-15

    IPC分类号: C01G25/02

    摘要: Novel, monodispersed, spherical ZrO2 particles in the size range of approximately 10 to approximately 600 nm exhibiting metastable tetragonal crystal structure at room temperature and novel methods of preparation. The ZrO2 particles are approximately 100% in the tetragonal phase at room temperature and can be pure and free of foreign oxides. The novel method can include mixing zirconium-alkoxide and an alcohol, forming preparation one, followed by separately dissolving completely de-ionized water and a polymeric steric stabilizer in an alcohol forming preparation two. Next the preparations can be mixed with vigorous stirring while subjecting the materials to hydrolysis and condensation reactions with very slow stirring. Next, there is waiting for the formation of a sol from the mixture, followed by drying at approximately 80 degrees C. to form resultant material followed by crushing the resultant material.

    摘要翻译: 在室温下具有大约10至大约600nm的尺寸范围的新型单分散的球形ZrO 2颗粒显示出亚稳的四方晶体结构和新的制备方法。 ZrO 2颗粒在室温下在四方相中约为100%,可以是纯的,不含外来氧化物。 该新方法可以包括将锆 - 醇盐和醇混合,形成制剂1,然后将完全去离子水和聚合空间稳定剂单独溶解在醇形成制剂中。 接下来,可以在剧烈搅拌下混合制剂,同时以非常缓慢的搅拌使材料进行水解和缩合反应。 接下来,等待从混合物中形成溶胶,然后在约80℃下干燥以形成所得材料,然后粉碎所得材料。

    Synthesis of tetragonal phase stabilized nano and submicron sized nanoparticles
    7.
    发明授权
    Synthesis of tetragonal phase stabilized nano and submicron sized nanoparticles 失效
    四方相稳定纳米和亚微米尺寸纳米粒子的合成

    公开(公告)号:US07595036B1

    公开(公告)日:2009-09-29

    申请号:US12321097

    申请日:2009-01-15

    IPC分类号: C01G25/02

    摘要: Novel, monodispersed, spherical ZrO2 particles in the size range of approximately 10 to approximately 600 nm exhibiting metastable tetragonal crystal structure at room temperature and novel methods of preparation. The ZrO2 particles are approximately 100% in the tetragonal phase at room temperature and can be pure and free of foreign oxides. The novel method can include mixing zirconium-alkoxide and an alcohol, forming preparation one, followed by separately dissolving completely de-ionized water and a polymeric steric stabilizer in an alcohol forming preparation two. Next the preparations can be mixed with vigorous stirring while subjecting the materials to hydrolysis and condensation reactions with very slow stirring. Next, there is waiting for the formation of a sol from the mixture, followed by drying at approximately 80 degrees C. to form resultant material followed by crushing the resultant material.

    摘要翻译: 在室温下具有大约10至大约600nm的尺寸范围的新型单分散的球形ZrO 2颗粒显示出亚稳的四方晶体结构和新的制备方法。 ZrO 2颗粒在室温下在四方相中约为100%,可以是纯的,不含外来氧化物。 该新方法可以包括将锆 - 醇盐和醇混合,形成制剂1,然后将完全去离子水和聚合空间稳定剂单独溶解在醇形成制剂中。 接下来,可以在剧烈搅拌下混合制剂,同时以非常缓慢的搅拌使材料进行水解和缩合反应。 接下来,等待从混合物中形成溶胶,然后在约80℃下干燥以形成所得材料,然后粉碎所得材料。