公开(公告)号：US06858334B1

公开(公告)日：2005-02-22

申请号：US10748516

申请日：2003-12-30

申请人： Mark Daniel Gorman ,  Irene Spitsberg ,  Brett Allen Boutwell ,  Ramgopal Darolia ,  Robert William Bruce ,  Venkat Subramanian Venkataramani ,  Anthony Mark Thompson ,  Antonio Mogro-Campera

发明人： Mark Daniel Gorman ,  Irene Spitsberg ,  Brett Allen Boutwell ,  Ramgopal Darolia ,  Robert William Bruce ,  Venkat Subramanian Venkataramani ,  Anthony Mark Thompson ,  Antonio Mogro-Campera

IPC分类号： C04B35/486 ,  C04B37/02 ,  C23C4/10 ,  C23C14/08 ,  C23C28/00 ,  C23C30/00 ,  F01D5/28 ,  B32B15/04 ,  C23C16/06 ,  F03B3/12

CPC分类号： C23C28/3455 ,  C04B35/486 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3286 ,  C04B2235/761 ,  C04B2235/9607 ,  C23C4/11 ,  C23C14/083 ,  C23C28/321 ,  C23C28/3215 ,  C23C30/00 ,  F01D5/284 ,  F01D5/288 ,  F05D2230/90 ,  F05D2300/2118 ,  F05D2300/611 ,  Y10T428/12611 ,  Y10T428/12618 ,  Y10T428/265

摘要： Zirconia-containing ceramic compositions having a c/a ratio of the zirconia lattice in the range of from about 1.005 to about 1.016. These compositions comprise a stabilizing amount up to about 10 mole % of the composition of a stabilizer component which comprises: (1) a first metal oxide selected from the group consisting of yttria, calcia, ceria, scandia, magnesia, india and mixtures thereof in an amount of from about 1.5 to about 6 mole % of the composition of; (2) a second metal oxide selected from the group consisting of lanthana, neodymia and mixtures thereof in an amount of from about 0.5 to about 4 mole % of the composition; and (3) optionally ytterbia in an amount of from about 0.5 to about 4 mole % of the composition. These compositions further comprise hafnia in an amount of from about 0.5 to about 15 mole % of the composition; and optionally tantala in an amount of from about 0.5 to about 1.5 mole % of the composition. These compositions are useful in preparing thermal barrier coatings having a balance of reduced thermal conductivity with good producibility, spallation resistance and erosion/impact resistance for an underlying substrate of articles that operate at, or are exposed to, high temperatures.

摘要翻译： 氧化锆的陶瓷组合物，其氧化锆晶格的c / a比在约1.005至约1.016的范围内。 这些组合物包含稳定剂量至多约10摩尔％的组合物的稳定剂组分，其包含：（1）选自氧化钇，氧化钙，二氧化铈，钪，氧化镁，印度的第一金属氧化物及其混合物 该组合物的约1.5至约6摩尔％的量; （2）选自氧化镧，钕及其混合物的第二金属氧化物的量为所述组合物的约0.5至约4摩尔％; 和（3）任选的恐惧症的量为组合物的约0.5至约4摩尔％。 这些组合物还包含组合物的约0.5至约15摩尔％的量的铪; 和任选的钽酸盐，其量为组合物的约0.5至约1.5摩尔％。 这些组合物可用于制备具有降低热导率的平衡的热障涂层，具有良好的可生产性，抗剥落性和对在高温下操作或暴露于高温的制品的底层基材的侵蚀/抗冲击性。