摘要:
Ceramic fibers comprising glass, and composites comprising such fibers. The glass comprises at least 35 percent by weight Al2O3, based on the total metal oxide content of the glass, a first metal oxide other than Al2O3, and a second, different metal oxide other than Al2O3. The glass contains not more than 10 percent by weight collectively As2O3, B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5, based on the total weight of the glass. The first and the second metal oxides are each selected from the group consisting of Y2O3, REO, MgO, TiO2, Cr2O3, CuO, NiO, Fe2O3, ZrO2, HfO2 and complex metal oxides thereof. At least a portion of the glass may be converted to crystals.
摘要翻译:包含玻璃的陶瓷纤维和包含这种纤维的复合材料。 基于玻璃的总金属氧化物含量,除Al 2 O 3以外的第一金属氧化物和除Al 2 O 3以外的第二不同金属氧化物,所述玻璃包含至少35重量%的Al 2 O 3。 基于玻璃的总重量,玻璃含有不超过10重量%的As 2 O 3,B 2 O 3,GeO 2,P 2 O 5,SiO 2,TeO 2和V 2 O 5。 第一和第二金属氧化物各自选自Y 2 O 3,REO,MgO,TiO 2,Cr 2 O 3,CuO,NiO,Fe 2 O 3,ZrO 2,HfO 2及其复合金属氧化物。 玻璃的至少一部分可以转化成晶体。
摘要:
Alumina-zirconia materials and methods of making the same. Embodiments of the invention include abrasive particles. The abrasive particles can be incorporated into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and abrasive brushes.
摘要:
Abrasive particles and methods of making the same. Embodiments of the invention can be used to make abrasive particles. The abrasive particles can be incorporated into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and abrasive brushes.
摘要:
A powder feeding assembly for feeding a flame-melting device is disclosed. The powder feeding assembly includes a powder holding chamber with a screening member and a brush assembly disposed therein. The brush assembly includes at least one bristle element having a distal and a proximal end. The distal end is disposed proximate to the screening member. Powder held in the powder holding chamber is urged through one or more openings in the screening member by rotating the brush assembly. The powder is then delivered to an input section of the flame-melting device for processing.
摘要:
Methods for making glasses and glass-ceramics comprising Al2O3 and SiO2. Glasses made according to the present invention can be made, formed as, or converted into glass beads, articles (e.g., plates), fibers, particles, and thin coatings. Some embodiments of glass-ceramic particles made according to the present invention can be are particularly useful as abrasive particles.
摘要:
Method for making ceramic particles. Embodiments of ceramic particles made according to the present invention can be are particularly useful as abrasive particles.
摘要:
Abrasive particles comprising alpha alumina particles and methods of making the same. The abrasive particles can be incorporated into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and abrasive brushes.
摘要:
Al2O3—La2O3—Y2O3—MgO ceramics (including glasses, crystalline ceramics, and glass-ceramics) and methods of making the same. Ceramics according to the present invention can be made, formed as, or converted into glass beads, articles (e.g., plates), fibers, particles, and thin coatings. The particles and fibers are useful, for example, as thermal insulation, filler, or reinforcing material in composites (e.g., ceramic, metal, or polymeric matrix composites). The thin coatings can be useful, for example, as protective coatings in applications involving wear, as well as for thermal management. Some embodiments of ceramic particles according to the present invention can be are particularly useful as abrasive particles.