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公开(公告)号：US3948669A
公开(公告)日：1976-04-06
申请号：US563153
申请日：1975-03-28
CPC分类号： C03C14/002 , C03C10/0054 , C03C2214/02
摘要： This invention is concerned with the production of composite articles comprising a glass or glass-ceramic matrix containing long fibrous single crystals of rutile (TiO.sub.2) of very high aspect ratios grown in situ. The glass articles are formed via the heat treatment of a molten batch consisting essentially, by weight on the oxide basis, of about 45-65% B.sub.2 O.sub.3, 5-30% Al.sub.2 O.sub.3, 5-30% TiO.sub.2, and 3-30% alkaline earth metal oxides and can exhibit greatly improved mechanical strength and toughness when compared with the original, or fiber-free, glass. The glass-ceramic articles are formed by heat treating the fiber-containing glass in a particular manner to cause the development of fine-grained crystals in situ, resulting in a highly-crystalline article containing long fibrous single crystals of rutile exhibiting verh high aspect ratios.
摘要翻译： 本发明涉及包含玻璃或玻璃 - 陶瓷基质的复合制品的生产，该玻璃或玻璃 - 陶瓷基质含有长期生长的非常高的纵横比的金红石（TiO 2）的长纤维单晶。 通过热处理基本上以氧化物为基准的约45-65％B 2 O 3，5-30％Al 2 O 3，5-30％TiO 2和3-30％碱土金属的熔融批料的热处理形成玻璃制品 与原始或无纤维的玻璃相比，可以显示出大大提高的机械强度和韧性。 玻璃陶瓷制品通过以特定的方式热处理含纤维玻璃而形成，使原位晶粒发生细微结晶，形成高度结晶的制品，其含有长度高的金红石型纤维单晶，具有高的纵横比 。
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公开(公告)号：US3936287A
公开(公告)日：1976-02-03
申请号：US437008
申请日：1974-01-28
CPC分类号： C03C10/0045 , C03C21/00
摘要： This invention is concerned with glass-ceramic articles having compositions within a very narrowly-delimited area of the MgO-Al.sub.2 O.sub.3 -B.sub.2 O.sub.3 -SiO.sub.2 field and having alpha-quartz and sapphirine as the principal crystal phases, resulting from nucleation through a combination of TiO.sub.2 and ZrO.sub.2. Upon contacting such articles with lithium ions at an elevated temperature, said lithium ions will replace magnesium ions on a two Li.sup.+-for-one Mg.sup..sup.+2 basis within the crystal structures, thereby providing a unitary glass-ceramic article having an integral surface layer wherein the principal crystal phase is a lithium-stuffed beta-quartz solid solution. That transformation of crystal phases results in compressive stresses being set up within the surface layer as the articles are cooled. Through the careful control of composition, crystallization treatment, and the parameters of the replacement reaction in the crystal structures, a tremendous degree of stored elastic energy can be developed within the articles such that they will demonstrate frangibility when fractured but will not exhibit undesirable spontaneous breakage and/or spalling.
摘要翻译： 本发明涉及具有在MgO-Al2O3-B2O3-SiO2领域的非常狭窄的区域内的组成的玻璃陶瓷制品，并且具有α-石英和蓝宝石作为主要晶相，这是由于通过TiO 2和 ZrO2。 在升高的温度下使这些物品与锂离子接触时，所述锂离子将在晶体结构内以两个Li +一Mg ++取代镁离子，从而提供一种单一的玻璃陶瓷制品，其具有 其中主晶相是锂填充的β-石英固溶体的整体表面层。 晶体相的转变导致当制品被冷却时在表面层内形成压应力。 通过仔细控制组合物，结晶处理和晶体结构中的置换反应参数，可以在制品内形成大量储存的弹性能，使其在断裂时显示脆性，但不会显示出不希望的自发断裂 和/或剥落。
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公开(公告)号：US4059425A
公开(公告)日：1977-11-22
申请号：US678930
申请日：1976-04-21
IPC分类号： C03B17/04 , C03B19/08 , C03C11/00 , C03C23/00 , C03C19/00 , C01B33/32 , C03B31/00 , C03C15/00
摘要： The present invention relates to a process and apparatus useful therein for steam hydrating alkali silicate glass materials and subsequently extruding the hydrated material. There need be no moving parts in the hydration apparatus since the process can utilize the pressure of steam to both hydrate the glass and extrude it from the hydration chamber. The process permits the formation of solid extrusions or foam extrusions.
摘要翻译： 本发明涉及一种用于蒸汽水合碱金属硅酸盐玻璃材料并随后挤出水合材料的方法和装置。 在水合装置中不需要移动部件，因为该方法可以利用蒸汽的压力来水合玻璃并将其从水合室中挤出。 该方法允许形成固体挤出物或泡沫挤出物。
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