CN102510907A - 低氧化硼复合材料 - Google Patents
低氧化硼复合材料 Download PDFInfo
- Publication number
- CN102510907A CN102510907A CN2010800332223A CN201080033222A CN102510907A CN 102510907 A CN102510907 A CN 102510907A CN 2010800332223 A CN2010800332223 A CN 2010800332223A CN 201080033222 A CN201080033222 A CN 201080033222A CN 102510907 A CN102510907 A CN 102510907A
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- China
- Prior art keywords
- boron suboxide
- composite material
- boron
- metal
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229910000419 boron suboxide Inorganic materials 0.000 title claims abstract description 50
- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 239000002184 metal Substances 0.000 claims abstract description 30
- 229910052751 metal Inorganic materials 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 20
- 239000000956 alloy Substances 0.000 claims abstract description 16
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 150000002739 metals Chemical class 0.000 claims abstract description 5
- 229910052709 silver Inorganic materials 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004332 silver Substances 0.000 claims abstract description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052737 gold Inorganic materials 0.000 claims abstract description 3
- 239000010931 gold Substances 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 239000010936 titanium Substances 0.000 claims description 3
- 229910052719 titanium Inorganic materials 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 description 13
- 238000005245 sintering Methods 0.000 description 12
- 239000000203 mixture Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 7
- 229910052796 boron Inorganic materials 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 229910052749 magnesium Inorganic materials 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- -1 aluminum compound Chemical class 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005219 brazing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- OFEAOSSMQHGXMM-UHFFFAOYSA-N 12007-10-2 Chemical compound [W].[W]=[B] OFEAOSSMQHGXMM-UHFFFAOYSA-N 0.000 description 1
- 229910001316 Ag alloy Inorganic materials 0.000 description 1
- 101710134784 Agnoprotein Proteins 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- LRTTZMZPZHBOPO-UHFFFAOYSA-N [B].[B].[Hf] Chemical compound [B].[B].[Hf] LRTTZMZPZHBOPO-UHFFFAOYSA-N 0.000 description 1
- ORILYTVJVMAKLC-UHFFFAOYSA-N adamantane Chemical compound C1C(C2)CC3CC1CC2C3 ORILYTVJVMAKLC-UHFFFAOYSA-N 0.000 description 1
- 229910001573 adamantine Inorganic materials 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- OJMOMXZKOWKUTA-UHFFFAOYSA-N aluminum;borate Chemical compound [Al+3].[O-]B([O-])[O-] OJMOMXZKOWKUTA-UHFFFAOYSA-N 0.000 description 1
- LGLOITKZTDVGOE-UHFFFAOYSA-N boranylidynemolybdenum Chemical compound [Mo]#B LGLOITKZTDVGOE-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001651 emery Inorganic materials 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
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- B24D3/14—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic ceramic, i.e. vitrified bondings
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
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- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
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Abstract
本发明提供了一种包含低氧化硼和二次相的低氧化硼复合材料,其中该二次相含有金属,该金属选自金、银和铜以及基于这些金属中一种或多种或者含有这些金属中一种或多种的合金。此外,该金属或合金在所述材料中的存在量小于约20体积%,且优选小于约6体积%。
Description
发明背景
本发明涉及低氧化硼复合材料。
合成超硬材料的发展已引起材料科学家的极大兴趣,这些合成超硬材料的硬度值接近或甚至超过金刚石的硬度值。金刚石具有70-100GPa的维氏硬度,它是最硬的已知材料,其次是立方氮化硼(Hv~60GPa)和低氧化硼,本文也称其为B6O。B6O单晶体的硬度值在0.49N和0.98N的载荷下分别测定为53GPa和45GPa,这类似于立方氮化硼的硬度值。
已知B6O也可以是非化学计量比的,即以B6O1-x存在(其中x为0-0.3)。这样的非化学计量比形式包括在术语B6O之内。这些材料强的共价键和短的原子间键长促成它们优异的物理性质和化学性质,例如大的硬度、低的质量密度、高的热导率、高的化学惰性和优异的耐磨性。潜在的工业用途包括用于磨轮、研磨剂和切削工具。
已利用若干技术来制备低氧化硼并且这些技术包括诸如下列工序:使单质硼(B)与氧化硼(B2O3)在适当高的压力和高温条件下反应。在美国专利第3,660,031号中,提到了制备低氧化硼的其它方法,例如用镁还原氧化硼(B2O3),或者通过用单质硼还原氧化锌。然而,利用这些已知工序中的每一种时,都存在妨碍该材料在工业中的有效性的缺点。例如用镁还原B2O3在所述低氧化物中产生镁和硼化镁杂质的固溶体,而用硼还原氧化镁仅产生相对小的低氧化硼产率并且是非常低效的。
WO2007/029102公开了用铝化合物制备的B6O复合物,所述铝化合物在晶界处产生硼酸铝相。获得了约3.5MPa.m0.5的断裂韧性且具有29.3GPa的相应硬度。该复合物中存在的铝相是软的并且尽管它们可改善所得复合物的断裂韧性,然而它们对于该复合物的总体硬度没有贡献。
WO2008/132676描述了一种包含低氧化硼和二次相的低氧化硼复合材料,该二次相含有硼化物例如硼化锆、硼化铪、硼化钨、硼化钼等。
WO2008/132674描述了一种包含低氧化硼和二次相的低氧化硼复合材料,该二次相含有至少两种金属氧化物的混合物,它们均不是含硼的氧化物。
WO2008/132672描述了一种包含低氧化硼和二次相的低氧化硼复合材料,该二次相含有稀土金属氧化物。
美国专利号5,456,735描述了一种通过用包含低氧化硼复合物材料的研磨工具磨蚀表面从该表面去除材料的方法。该低氧化硼复合材料包含处在基质中的低氧化硼颗粒,在一个实施方案中该基质可以是铜基合金。该铜基合金的存在量是至少25体积%。
对于具有增强的机械性能、特别是增强的断裂韧性的低氧化硼材料(B6O)存在需求。
发明概述
根据本发明,提供了一种包含低氧化硼和二次相的低氧化硼复合材料,其中该二次相含有金属,该金属选自金、银和铜以及基于这些金属中一种或多种或者含有这些金属中一种或多种的合金,并且其中该金属或合金在所述材料中的存在量小于约20体积%,优选小于约6体积%。
二次相中金属的存在可使该复合材料更易于钎焊至基材。
可使用本领域中已知的任何适宜的钎焊合金来实现钎焊。一种适宜的钎焊合金实例是Cu/Ag/Ti合金。
该二次相可基本上由金属组成,即任何其它元素或化合物将仅为痕量或微量。
该二次相可含有改善或增强所述复合材料性能的其它元素或化合物。在一些实施方案中,硼化物形成剂例如钛、钒、镍、铁、钴或铬可存在于该二次相中。所有这些元素均是强的硼化物形成剂,从而导致在复合材料制造过程中形成硼化物。虽然不希望受任何特定理论限制,但所述硼化物的形成改善金属与B6O相的润湿性和结合,这可导致在复合材料中形成更强的延性桥接(bridge)。当所述其它元素或化合物是硼化物形成剂或硼化物时,此类元素或化合物在二次相中的存在量可以小于50重量%。
低氧化硼可以是颗粒或粒状低氧化硼。该低氧化硼颗粒或粒料自身的平均粒度优选细小并且范围可以为100nm至100μm,优选为100nm至10μm。
可以制备细小颗粒状的低氧化硼,例如通过使低氧化硼源进行研磨。如果在含铁或含钴研磨介质的存在下进行研磨,可将一些铁和/或钴引入被烧结的材料中。对于无铁材料,可以用盐酸清洗研磨过的粉末,或者可以用氧化铝罐和研磨球进行研磨。已发现在温水或醇类中清洗研磨过的粉末是有利的,以便去除任何过量的B2O3或H3BO3。
本发明的复合材料包含通常为颗粒或粒状形式的低氧化硼,并且二次相为粘结、粘着形式。该二次相可均匀分散在低氧化硼之间。
可通过如下方式制造本发明的复合材料:提供低氧化硼颗粒或粒料的源;使所述低氧化硼源与金属或在烧结条件下产生所述金属的化合物接触,从而形成反应物料;和烧结所述反应物料以便产生低氧化硼复合材料。
在本发明的一些实施方案中,该金属或合金可以按金属形式存在于所述反应物料中,并且在一些实施方案中,该金属可以按盐或氧化物的形式存在,所述盐或氧化物在烧结期间转变成该金属。可将金属形式的该金属或合金、盐或氧化物与低氧化硼混合或者可以作为涂层提供在低氧化硼上。
反应物料中的金属或合金可含有一些硼。硼可溶于熔融金属中并且还具有减少金属与低氧化硼的相互作用的效果。
烧结优选在小于200MPa的压力和不超过1950℃的温度下进行。优选低压烧结工艺例如热压(HP)、气体压力烧结、热等静压(HIP)或放电等离子体烧结(SPS)。SPS工艺的特征在于非常快速的加热和短的等温保持时间,特别地具有50-400K/分钟的加热速率和5分钟或更少的等温保持时间。热压工艺的特征在于10-20K/分钟的加热速率,并且等温保持时间是约15-25分钟,典型为20分钟。
在烧结步骤之前可将低氧化硼与产生二次相所必需的成分混合。作为替代,在烧结步骤之前可用二次相成分涂覆低氧化硼。
在本发明的一种形式中,多孔的烧结低氧化硼材料浸渗有金属或合金。例如,可以通过压实低氧化硼颗粒或粒料,或者通过在高温例如1350℃温度、在惰性气体例如氩气中烧结硼和B2O3来产生多孔、烧结的低氧化硼材料。当低氧化硼材料有待含硼化物时,可烧结二氧化钛与硼的混合物从而产生低氧化硼和硼化钛二次相。
根据本发明的复合材料可用于切削应用以及耐磨零件。在二次相中存在金属致使该复合材料可易于钎焊到基材如硬质合金基材。该复合材料还可以被破碎成砂粒形式并且用于砂粒应用。此外,该复合材料还可用于装甲应用中,例如防弹装甲,且特别是防弹衣。
发明实施方案的描述
现在将通过下面的实施例来说明本发明。
实施例
使用具有氧化铝球的碾磨机将平均粒度为d50=2.23μm的B6O起始粉末与2wt%Ag2O混合,在乙醇溶剂中持续6小时。氧化铝球的磨损为0.8wt%。
使用旋转蒸发器干燥所述研磨过的混合物,其后使用具有石墨箔片的石墨压模进行快速放电等离子体烧结。所述石墨箔片涂覆有BN悬浮液以防止与石墨相互作用。使用SPS方法以50K/min的加热速率、1900℃的温度和50MPa的压力,在氩气气氛下烧结所述研磨过的混合物5分钟。
由于使用非导电的hBN衬里或涂层,致密化不只是特征在于电流通过所述粉末的SPS工艺而更加是快速的热压。
产生完全致密化的包含低氧化硼颗粒的复合材料,二次相均匀分散在该复合材料内。对样品的截面进行抛光,然后用维氏刻压机测试硬度和断裂韧性。发现在0.4kg的载荷下硬度是约37±0.7GPa且断裂韧性为约4.6MPa.m0.5。
XRD分析显示Ag2O转变成金属银。
Al2O3(研磨球的磨损)导致一些另外的晶界相:Al20B4O36。
在上述相同条件下,用钢球研磨B6O粉末并然后从AgNO3溶液沉淀银产生致密的样品,没有Al杂质。该样品显示出与上述复合材料类似的特性。
Claims (7)
1.一种包含低氧化硼和二次相的低氧化硼复合材料,其中该二次相含有金属,该金属选自金、银和铜以及基于这些金属中一种或多种或者含有这些金属中一种或多种的合金,并且其中该金属或合金在所述材料中的存在量小于20体积%。
2.根据权利要求1的低氧化硼复合材料,其中该二次相基本上由所述金属或合金组成。
3.根据权利要求1的低氧化硼复合材料,其中该二次相含有其它元素或化合物。
4.根据权利要求3的低氧化硼复合材料,其中所述其它元素或化合物是硼化物形成剂或其硼化物。
5.根据权利要求4的低氧化硼复合材料,其中该硼化物形成剂选自钛、钒、镍、铁、钴和铬。
6.根据权利要求1-5中任一项的低氧化硼复合材料,其中所述金属或合金在该材料中的存在量小于6体积%。
7.基本上如本文参照实施例所述的低氧化硼复合材料。
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CN112469519A (zh) * | 2018-12-07 | 2021-03-09 | 斯沃奇集团研究和开发有限公司 | 制造贵金属合金的方法和由此获得的贵金属合金 |
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WO2019210278A1 (en) | 2018-04-27 | 2019-10-31 | Saint-Gobain Ceramics & Plastics, Inc. | Material including boron suboxide and method of forming same |
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US5135892A (en) * | 1991-07-12 | 1992-08-04 | Norton Company | Boron suboxide material and method for its preparation |
CN1098975A (zh) * | 1993-04-21 | 1995-02-22 | 诺顿公司 | 用低氧化硼研磨的方法及低氧化硼制品和所使用的组合物 |
Family Cites Families (3)
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US5456735A (en) | 1991-07-12 | 1995-10-10 | Norton Company | Method of abrading with boron suboxide (BxO) and the boron suboxide (BxO) articles and composition used |
EP1928806B1 (en) | 2005-09-07 | 2012-05-02 | Element Six (Production) (Pty) Ltd. | Boron suboxide composite material |
JP2010524840A (ja) | 2007-04-26 | 2010-07-22 | エレメント シックス (プロダクション)(プロプライエタリィ) リミテッド | 亜酸化ホウ素複合材料 |
-
2009
- 2009-07-22 GB GBGB0912736.6A patent/GB0912736D0/en not_active Ceased
-
2010
- 2010-07-21 US US13/383,254 patent/US20120217436A1/en not_active Abandoned
- 2010-07-21 KR KR1020127004492A patent/KR20120062724A/ko not_active Application Discontinuation
- 2010-07-21 WO PCT/IB2010/053324 patent/WO2011010288A2/en active Application Filing
- 2010-07-21 EP EP10742287A patent/EP2456898A2/en not_active Withdrawn
- 2010-07-21 JP JP2012521145A patent/JP2012533690A/ja active Pending
- 2010-07-21 CN CN2010800332223A patent/CN102510907A/zh active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5135892A (en) * | 1991-07-12 | 1992-08-04 | Norton Company | Boron suboxide material and method for its preparation |
CN1098975A (zh) * | 1993-04-21 | 1995-02-22 | 诺顿公司 | 用低氧化硼研磨的方法及低氧化硼制品和所使用的组合物 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112469519A (zh) * | 2018-12-07 | 2021-03-09 | 斯沃奇集团研究和开发有限公司 | 制造贵金属合金的方法和由此获得的贵金属合金 |
CN112469519B (zh) * | 2018-12-07 | 2024-01-19 | 斯沃奇集团研究和开发有限公司 | 制造贵金属合金的方法和由此获得的贵金属合金 |
Also Published As
Publication number | Publication date |
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KR20120062724A (ko) | 2012-06-14 |
WO2011010288A3 (en) | 2011-04-28 |
EP2456898A2 (en) | 2012-05-30 |
WO2011010288A2 (en) | 2011-01-27 |
GB0912736D0 (en) | 2009-08-26 |
US20120217436A1 (en) | 2012-08-30 |
JP2012533690A (ja) | 2012-12-27 |
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