-
公开(公告)号：US08722188B2
公开(公告)日：2014-05-13
申请号：US12650955
申请日：2009-12-31
CPC分类号： C04B35/111 , C04B33/04 , C04B35/04 , C04B35/62695 , C04B2235/3472 , C04B2235/5436 , C04B2235/94 , C09K8/80
摘要： Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase.
摘要翻译： 公开了一种制备具有至少10％总孔隙率的陶瓷颗粒（如支撑剂）的方法。 该方法包括形成包含5％至30％的第一陶瓷材料和至少40％的第二陶瓷材料的颗粒前体。 第一陶瓷材料的烧结温度可以低于第二陶瓷材料的烧结温度。 将前体加热到高于第一材料的烧结温度并低于第二材料的烧结温度的最高温度。 还公开了具有化学和氧化铝结晶相的特定组合的陶瓷制品。
-
公开(公告)号：US20140011658A1
公开(公告)日：2014-01-09
申请号：US14005278
申请日：2012-03-26
CPC分类号： C03C14/006 , C03C10/00 , C03C14/00 , C03C2214/20 , C09K8/80
摘要： A ceramic particle with at least two microstructural phases comprising an amorphous phase, representing between 30 volume percent and 70 volume percent of the particle, and a first substantially crystalline phase comprising a plurality of predominately crystalline regions distributed through the amorphous phase is disclosed. A process for making the ceramic particle is also disclosed.
摘要翻译： 公开了一种具有至少两个微结构相的陶瓷颗粒，其包含非晶相，代表颗粒的30体积％至70体积％，以及包含分布在非晶相中的多个主要结晶区域的第一基本上结晶相。 还公开了制备陶瓷颗粒的方法。
-
公开(公告)号：US20100167056A1
公开(公告)日：2010-07-01
申请号：US12650955
申请日：2009-12-31
CPC分类号： C04B35/111 , C04B33/04 , C04B35/04 , C04B35/62695 , C04B2235/3472 , C04B2235/5436 , C04B2235/94 , C09K8/80
摘要： Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase.
摘要翻译： 公开了一种制备具有至少10％总孔隙率的陶瓷颗粒（如支撑剂）的方法。 该方法包括形成包含5％至30％的第一陶瓷材料和至少40％的第二陶瓷材料的颗粒前体。 第一陶瓷材料的烧结温度可以低于第二陶瓷材料的烧结温度。 将前体加热到高于第一材料的烧结温度并低于第二材料的烧结温度的最高温度。 还公开了具有化学和氧化铝结晶相的特定组合的陶瓷制品。
-
公开(公告)号：US20100113251A1
公开(公告)日：2010-05-06
申请号：US12262790
申请日：2008-10-31
IPC分类号： C04B35/101 , C04B35/14 , B29C67/04
CPC分类号： C04B35/44 , C04B35/62813 , C04B35/645 , C04B38/009 , C04B2111/00793 , C04B2235/3232 , C04B2235/3272 , C04B2235/3418 , C04B2235/528 , C04B2235/604 , C04B2235/72 , C04B2235/77 , C09K8/80 , C04B38/0074 , C04B38/06
摘要： A sintered ceramic particle made from a ceramic material having a true density greater than 3.5 g/cc and a composition having no more than 30 weight percent silicon oxide and at least 15 weight percent iron oxide, based on the combined weight of the oxides of aluminum, iron and silicon, is disclosed. A process that utilizes an externally applied compressive force to make a ceramic particle is also disclosed.
摘要翻译： 由真实密度大于3.5g / cc的陶瓷材料制成的烧结陶瓷颗粒和基于铝的氧化物的总重量的氧化硅和不超过30重量％的氧化铁的组合物 ，铁和硅。 还公开了利用外部施加的压缩力制造陶瓷颗粒的方法。
-
公开(公告)号：US20140030163A1
公开(公告)日：2014-01-30
申请号：US14111337
申请日：2012-04-13
CPC分类号： C04B35/12 , C04B35/10 , C04B35/482 , C04B35/49 , C04B35/62665 , C04B35/62695 , C04B35/62823 , C04B35/66 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3225 , C04B2235/3232 , C04B2235/3241 , C04B2235/3244 , C04B2235/3246 , C04B2235/3418 , C04B2235/349 , C04B2235/5427 , C04B2235/5436 , C04B2235/5472 , C04B2235/762 , C04B2235/77 , C04B2235/96 , C04B2235/9692 , C10J3/72 , C10J3/74 , F22B1/18 , F27D1/0006
摘要： Sintered refractory product including, in percentages by weight on the basis of the oxides, —more than 10% of chromium oxide Cr2O3, —more than 2% of hafnium oxide HfO2, —more than 1% of zirconium oxide ZrO2, the total content of chromium, hafnium and zirconium oxides Cr2O3+HfO2+ZrO2 being greater than 70%.
摘要翻译： 烧结耐火产品包括以氧化物为基准的重量百分比 - 超过10％的氧化铬Cr 2 O 3， - 超过2％的氧化铪HfO 2， - 大于1％的氧化锆ZrO 2，总含量 铬，铪和锆氧化物Cr2O3 + HfO2 + ZrO2大于70％。
-
公开(公告)号：US08283271B2
公开(公告)日：2012-10-09
申请号：US12262790
申请日：2008-10-31
IPC分类号： C04B35/00
CPC分类号： C04B35/44 , C04B35/62813 , C04B35/645 , C04B38/009 , C04B2111/00793 , C04B2235/3232 , C04B2235/3272 , C04B2235/3418 , C04B2235/528 , C04B2235/604 , C04B2235/72 , C04B2235/77 , C09K8/80 , C04B38/0074 , C04B38/06
摘要： A sintered ceramic particle made from a ceramic material having a true density greater than 3.5 g/cc and a composition having no more than 30 weight percent silicon oxide and at least 15 weight percent iron oxide, based on the combined weight of the oxides of aluminum, iron and silicon, is disclosed. A process that utilizes an externally applied compressive force to make a ceramic particle is also disclosed.
摘要翻译： 由真实密度大于3.5g / cc的陶瓷材料制成的烧结陶瓷颗粒和基于铝的氧化物的总重量的氧化硅和不超过30重量％的氧化铁的组合物 ，铁和硅。 还公开了利用外部施加的压缩力制造陶瓷颗粒的方法。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.019 秒)