中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

273 records (took 0.02 seconds)

    High pressure split die and associated methods
    22.
    发明授权
    High pressure split die and associated methods 有权
    高压分模和相关方法

    公开(公告)号：US07128547B2

    公开(公告)日：2006-10-31

    申请号：US10757715

    申请日：2004-01-13

    Applicant: Chien-Min Sung

    Inventor： Chien-Min Sung

    IPC: B28B3/00

    CPC classification number: B01J3/065 ,  B01J3/067 ,  B01J2203/061 ,  B01J2203/062 ,  B01J2203/0625 ,  B01J2203/0645 ,  B01J2203/0655 ,  B01J2203/066 ,  B01J2203/068 ,  B30B11/004 ,  B30B11/007 ,  Y10T29/49826 ,  Y10T29/49863 ,  Y10T29/49998 ,  Y10T29/51

    Abstract: An improved high pressure apparatus can include a plurality of complementary die segments. The die segments can have inner surfaces which are shaped to form a die chamber upon assembly of the die segments. A pair of anvils can be oriented such that an anvil is at each end of the die chamber. To prevent the die segments from being forced apart during movement of the anvils, force members can be connected to the die segments. The force members can apply discrete forces to the die segments sufficient to retain the die segments in substantially fixed positions relative to each other during application of force by the pair of anvils. Using such a high pressure apparatus can achieve pressures as high as 10 GPa with improved useful die life and larger reaction volumes.

    Abstract translation: 改进的高压装置可以包括多个互补的模片段。 模具段可以具有内表面，其在模具段的组装时成形为形成模腔。 一对砧座可以被定向成使得砧座在模腔的每个端部。 为了防止模具段在砧座移动期间被迫分开，可以将力构件连接到模具段。 力构件可以向模具段施加离散的力，足以在由一对砧施加力期间将模具段保持在相对于彼此的基本上固定的位置。 使用这种高压装置可以实现高达10GPa的压力，并且具有改善的有用的模具寿命和较大的反应体积。

    Jadeite and its production
    26.
    发明申请
    Jadeite and its production 失效
    翡翠及其生产

    公开(公告)号：US20030031869A1

    公开(公告)日：2003-02-13

    申请号：US09799192

    申请日：2001-03-05

    Inventor： Suresh Shankarappa Vagarali ,  Thomas Richard Anthony ,  John Casey ,  Robert Charles DeVries ,  Stephen Lee Dole ,  John William Lucek ,  Alan Cameron Smith ,  Biju Varghese ,  Steven William Webb

    IPC: G02B001/00

    CPC classification number: C01B33/26 ,  B01J3/062 ,  B01J2203/068 ,  C01B33/20 ,  Y10T428/2982 ,  Y10T428/2996

    Abstract: A jadeite material has a thickness in excess of about 1.0 mm and CIELAB indices of L*>42, a* null6. The grain size of the jadeite material is less than about 30 microns and is an equiaxed grain structure. The jadeite material has an optical transmission peak between 500 and 565 nm with an I/IO optical transmission ratio of over 40%. The first step in making the jadeite material is to wrap a glass block, convertible by HP/HT into jadeite and having a nominal composition of NaAlSi2O6, with a graphite or refractive metal sheet. The wrapped glass block is placed in an HP/HT apparatus, rapidly heated, and subjected therein to a pressure in excess of about 3 GPa and a temperature in excess of about 1000null C. for a time adequate to convert the glass block into jadeite. The jadeite material then is cooled and the pressure subsequently released.

    Abstract translation: 翡翠材料的厚度超过约1.0mm，CIELAB指数L *> 42，a * <-6和b *> + 6。 翡翠材料的晶粒尺寸小于约30微米，是等轴晶粒结构。 翡翠材料的光传输峰值在500和565nm之间，I / IO光传输比率超过40％。 制造翡翠材料的第一步是将玻璃块包裹，由HP / HT转化为翡翠，并具有标称组成的NaAlSi 2 O 6与石墨或折射金属片。 将包裹的玻璃块放置在HP / HT装置中，快速加热，并在其中进行超过约3GPa的压力和超过约1000℃的温度，足以将玻璃块转化成翡翠 。 然后将翡翠材料冷却并随后释放压力。

    Diamond growth
    27.
    发明授权
    Diamond growth 失效
    钻石增长

    公开(公告)号：US06497853B1

    公开(公告)日：2002-12-24

    申请号：US09403017

    申请日：1999-11-23

    Applicant: Geoffrey John Davies ,  Raymond Albert Chapman ,  Aulette Stewart ,  Lesley Kay Hedges

    Inventor： Geoffrey John Davies ,  Raymond Albert Chapman ,  Aulette Stewart ,  Lesley Kay Hedges

    IPC: C01B3106

    CPC classification number: B01J3/062 ,  B01J2203/062 ,  B01J2203/0655 ,  B01J2203/068

    Abstract: Diamond crystals may be grown by providing a source of diamond crystals, providing a plurality of growth centers defined by diamond crystals, mixing the source and growth center diamond crystals with a solvent/catalyst in particulate form to form a reaction mass, subjecting the reaction mass to conditions of elevated temperature and pressure suitable for crystal growth, and recovering the diamond crystals. The necessary supersaturation of carbon is achieved in the solvent/catalyst, at least in part, and preferably predominantly, by a selection of the particle size difference between the source crystal and the growth centers. The mass of diamond crystals produced by this method has a high concentration of twinned diamonds.

    Abstract translation: 金刚石晶体可以通过提供金刚石晶体源生长，提供由金刚石晶体限定的多个生长中心，将源和生长中心金刚石晶体与颗粒形式的溶剂/催化剂混合以形成反应物质，使反应物质 适用于晶体生长的升高的温度和压力的条件，以及回收金刚石晶体。 在溶剂/催化剂中，至少部分地，优选主要通过选择源晶体和生长中心之间的粒径差异来实现碳的必要过饱和。 通过该方法生产的金刚石晶体的质量具有高浓度的双晶钻石。

    Process for preparing an amorphous ultrahard material on the basis of boron nitride
    28.
    发明授权
    Process for preparing an amorphous ultrahard material on the basis of boron nitride 失效
    基于氮化硼制备非晶超硬材料的方法

    公开(公告)号：US5541144A

    公开(公告)日：1996-07-30

    申请号：US256997

    申请日：1994-07-29

    Applicant: Jorg Wildenburg

    Inventor： Jorg Wildenburg

    IPC: B01J3/06 ,  C01B21/064 ,  C03B19/06 ,  C03C3/32 ,  C04B35/58 ,  C04B35/583

    CPC classification number: C03B19/06 ,  B01J3/062 ,  C03C3/328 ,  C04B35/583 ,  B01J2203/0645 ,  B01J2203/066 ,  B01J2203/068 ,  Y02P40/57

    Abstract: A process for preparing amorphous ultrahard material based on boron nitride which has a hardness sufficient to scratch diamond uses hexagonal or turbostratic boron nitride hBN as starting material. The starting material is compressed at pressures of at least 70 Kbar and heated to temperatures of at least of 1650.degree. C. until a boron nitride melt is obtained, the boron nitride melt is quenched by shutting off the heat supply and the quenched boron nitride melt is then relieved of the pressure. In the process, the hexagonal or turbostratic boron nitride employed as a starting material is treated in the presence of crystallisation inhibitors so that the formation of crystals is completely prevented and an amorphous structure is compacted by incorporation of reaction products comprising boron suboxides.

    Abstract translation: PCT No.PCT / EP93 / 00314 Sec。 371日期1994年7月29日第 102（e）日期1994年7月29日PCT提交1993年2月9日PCT公布。 出版物WO93 / 16015 日期1993年8月19日一种制备具有足以划伤金刚石的硬度的基于氮化硼的无定形超硬材料的方法使用六方晶或氮化硼氮化硼hBN作为原料。 起始材料在至少70Kbar的压力下被压缩并加热到至少1650℃的温度，直到获得氮化硼熔体，通过切断供热和淬火的氮化硼熔体来淬火氮化硼熔体 然后缓解压力。 在此过程中，在结晶抑制剂存在下处理用作起始材料的六方晶系或膨胀氮化硼，以便完全防止晶体的形成，并且通过掺入含有低氧化硼的反应产物使无定形结构压实。

Patent Agency Ranking