公开(公告)号：US06258184B1

公开(公告)日：2001-07-10

申请号：US09289993

申请日：1999-04-13

申请人： Hideki Iba ,  Toshihiro Mori ,  Yasuhide Kurimoto

发明人： Hideki Iba ,  Toshihiro Mori ,  Yasuhide Kurimoto

IPC分类号： C22C1400

CPC分类号： H01M4/383 ,  C01B3/0031 ,  C22C30/00 ,  Y02E60/327 ,  Y10S420/90

摘要： A BCC type hydrogen-absorbing alloy, which uses a ferroalloy, is advantageous from the aspect of the production cost and exhibits excellent hydrogen absorption and desorption characteristics due to a fine structure constituted by spinodal decomposition even when the iron component is increased. The hydrogen-absorbing alloy is expressed by the general formula AxVayBz, where A is at least one of Ti and Zr, Va is at least one member of the Group Va elements of the Periodic Table consisting of V, Nb and Ta, and B contains at least Fe and is at least one member selected from the group consisting of Cr, Mn, Co, Ni, Cu, Al, Mo and W, each of x, y and z satisfies the relation, in terms of of the atomic number ratio, 0≦x≦70, 0≦y≦50, x+y+z=100, and x/z=0.25 to 2.0, the phase of the body-centered cubic structure is at least 50% in terms of the phase fraction and its lattice constant is at least 0.2950 nm but not greater than 0.3100 nm.

摘要翻译： 使用铁合金的BCC型吸氢合金在生产成本方面是有利的，并且即使在铁成分增加时，由于由旋节分解构成的精细结构，显示出优异的吸氢和解吸特性。 吸收合金由通式AxVayBz表示，其中A是Ti和Zr中的至少一种，Va是由V，Nb和Ta组成的元素周期表Va族元素中的至少一个，B包含 至少为Fe，为选自Cr，Mn，Co，Ni，Cu，Al，Mo和W中的至少一种，x，y和z分别满足关于原子数比 ，0 <= x <= 70,0 <= y <= 50，x + y + z = 100，x / z = 0.25〜2.0，体心立方结构的相位为至少50％ 的相分数及其晶格常数为至少0.2950nm且不大于0.3100nm。

公开(公告)号：US06274194B1

公开(公告)日：2001-08-14

申请号：US09230985

申请日：1999-02-03

申请人： Toshihiro Mori ,  Hideki Iba

发明人： Toshihiro Mori ,  Hideki Iba

IPC分类号： B22F102

CPC分类号： B22F9/082 ,  B22F1/0088 ,  B22F2009/0864 ,  B22F2999/00 ,  C01B3/0031 ,  C22C1/04 ,  H01M4/383 ,  Y02E60/327 ,  Y02P20/129 ,  Y10S420/90 ,  C01B17/45

摘要： The present invention relates to a surface treatment for hydrogen-absorbing alloy. More particularly, the present invention relates to a surface treatment for hydrogen-absorbing alloy by which the poisoning resistance of a surface of alloy powder with respect to oxide film, water or absorbing gas can be enhanced so that activation treatment can be easily conducted on alloy powder. In the method, the poisoning resistance is enhanced by forming a protective film, which contains at least one of sulfide and fluoride, on the surface of hydrogen-absorbing alloy powder in an atmosphere containing SF6 gas when hydrogen-absorbing alloy is crushed or hydrogen-absorbing alloy is in a state of powder or when hydrogen-absorbing alloy is made into powder by rapidly cooling and solidifying. Further, the above method includes: a process in which hydrogen-absorbing alloy is accommodated in a container and crushing of hydrogenation is conducted on the alloy in an atmosphere of hydrogen; a process of dehydrogenation in which gases are withdrawn from the container; and a process in which heat treatment is conducted in the container, wherein the atmosphere in the container contains SF6 gas.

摘要翻译： 本发明涉及吸氢合金的表面处理。 更具体地说，本发明涉及一种吸氢合金的表面处理方法，其中可以提高合金粉末表面相对于氧化膜，水或吸收气体的耐中毒性，从而可以容易地对合金进行活化处理 粉末。 在该方法中，当吸氢合金粉碎时，在含有SF 6气体的气氛中，在吸氢合金粉末的表面上形成含有硫化物和氟化物中的至少一种的保护膜，从而提高耐中毒性， 吸收合金处于粉末状态，或者当通过快速冷却和固化将吸氢合金制成粉末时。 此外，上述方法包括：在氢气氛中将合金吸收在容器中并进行氢化破碎的方法， 脱气过程，其中气体从容器中取出; 以及在容器中进行热处理的方法，其中容器中的气氛含有SF 6气体。

公开(公告)号：US6153032A

公开(公告)日：2000-11-28

申请号：US269880

申请日：1999-05-14

申请人： Hideki Iba ,  Etsuo Akiba

发明人： Hideki Iba ,  Etsuo Akiba

IPC分类号： C22F1/00 ,  C01B3/00 ,  C22C1/00 ,  C22C14/00 ,  C22C27/02 ,  C22C27/06 ,  C22C30/00 ,  C22F1/11 ,  C22F1/18 ,  C01B6/24 ,  C22C1/18

CPC分类号： C22F1/11 ,  C01B3/0031 ,  C22C14/00 ,  C22C27/02 ,  C22C27/06 ,  C22C30/00 ,  C22F1/183 ,  Y02E60/327 ,  Y10S420/90

摘要： A hydrogen-absorbing alloy capable of controlling the very fine structure formed by a spinodal decomposition for improving flatness of an emission equilibrium pressure in a practical temperature/pressure range and excellent in activation and hydrogen absorption/desorption amounts, and a production method thereof. The hydrogen-absorbing alloy has a composition expressed by the general formula Ti.sub.x Cr.sub.y V.sub.z (where each of x, y and z represents an atomic percent and satisfies the relation x+y+z=100), wherein the composition has a body-centered cubic structural phase as a principal phase, the principal phase exists within the range in which the body-centered cubic structure appears and a spinodal decomposition occurs with the exception of a C14 (a typical structure of the Laves phase; a MgZn.sub.2 type crystal structure) mono-phase range, and has a regular periodical structure formed by the spinodal decomposition, and its apparent lattice constant is at least 0.2950 nm but is not greater than 0.3060 nm. The production method of the hydrogen-absorbing alloy comprises conducting a solution heat-treatment at 700 to 1,500.degree. C. for one minute to 100 hours, and a cooling treatment and/or an aging treatment at 350 to 1,200.degree. C. for one minute to 200 hours.

摘要翻译： PCT No.PCT / JP97 / 03552 Sec。 371日期1999年5月14日 102（e）日期1999年5月14日PCT提交1997年10月3日PCT公布。 公开号WO98 / 14627 日期：1998年4月9日一种能够控制由旋节分解形成的非常细微结构的吸氢合金，用于提高实用温度/压力范围内的排放平衡压力的平坦度，并且活化和氢吸收/解吸量优异， 生产方法。 吸氢合金具有由通式TixCryVz（其中x，y和z各自表示原子百分比并满足关系x + y + z = 100）表示的组成，其中组合物具有体心立方结构 相作为主相，主相存在于体心立方结构出现的范围内，并且除了C14（Laves相的典型结构; MgZn2型晶体结构）单体之外，还发生旋节分解 并且具有通过旋节分解形成的规则的周期结构，并且其表观晶格常数为至少0.2950nm但不大于0.3060nm。 吸氢合金的制造方法包括在700〜1500℃下进行1分钟〜100小时的固溶热处理，在350〜1200℃进行1分钟的冷却处理和/或时效处理 至200小时。

公开(公告)号：US5968291A

公开(公告)日：1999-10-19

申请号：US679304

申请日：1996-07-12

申请人： Hideki Iba ,  Etsuo Akiba

发明人： Hideki Iba ,  Etsuo Akiba

IPC分类号： C22F1/18 ,  C01B3/00 ,  C22C14/00 ,  C22C27/02 ,  C22F1/00

CPC分类号： C01B3/0031 ,  Y02E60/327 ,  Y10S420/90 ,  Y10S977/777

摘要： This invention relates to a hydrogen-absorbing alloy, and particularly provides a hydrogen-absorbing alloy having a body-centered cubic structure which has a periodical structure formed by spinodal decomposition, has a large hydrogen storage amount, has excellent hydrogen desorption characteristics and can mitigate activation conditions, the alloy comprises at least two elements of alloy components, wherein the relational curve between chemical free energy of solid solutions and an alloy composition has a shape describing an upwardly convexed curve, or said alloy comprises two solid solutions having a regular periodical structure formed by spinodal decomposition within a region satisfying the relation d.sup.2 G/dX.sub.B.sup.2

摘要翻译： 本发明涉及一种吸氢合金，特别是提供一种具有体积立方结构的吸氢合金，其具有通过旋节分解形成的周期结构，具有大的储氢量，具有优异的氢解吸特性并且可以减轻 所述合金包括至少两种合金成分元素，其中固溶体的化学自由能与合金组成之间的关系曲线具有描述向上凸起曲线的形状，或者所述合金包含两种具有规则周期结构的固溶体 在满足关系d2G / dXB2 <0（其中G是化学自由能，XB是溶质合金浓度）的区域内，通过旋节分解形成为主相。

公开(公告)号：US5552110A

公开(公告)日：1996-09-03

申请号：US217862

申请日：1994-03-25

申请人： Hideki Iba ,  Chikatoshi Maeda ,  Tadashi Takeuchi ,  Yasuyuki Suzuki

发明人： Hideki Iba ,  Chikatoshi Maeda ,  Tadashi Takeuchi ,  Yasuyuki Suzuki

IPC分类号： C22C23/02 ,  C22C23/04 ,  C22C23/00

CPC分类号： C22C23/02 ,  C22C23/04

摘要： A magnesium alloy includes 0.1 to 6.0% by weight of Al, 0.25 to 6.0% by weight of Zn, 0.1 to 4.0% by weight of rare earth element (hereinafter referred to as "R.E."), and balance of Mg and inevitable impurities. Preferably, it includes 1.0 to 3.0% by weight of Al ("a"), 0.25 to 3.0% by weight of Zn ("b") and 0.5 to 4.0% by weight of R.E.: wherein when "b" is in a range, 0.25.ltoreq."b".ltoreq.1.0, "a" and "c" satisfy a relationship, "c".ltoreq."a"+1.0; and when "b" is in a range, 1.0.ltoreq."b".ltoreq.3.0, "a," "b" and "c" satisfy a relationship, "c".ltoreq."a"+"b".ltoreq.(1/2)"c"+4.0; in order to further improve creep properties at elevated temperatures while maintaining enhanced tensile strength at room temperature and up to 100.degree. C. at least.

摘要翻译： 镁合金包含0.1〜6.0重量％的Al，0.25〜6.0重量％的Zn，0.1〜4.0重量％的稀土元素（以下称为R.E.），余量为Mg和不可避免的杂质。 优选地，其包含1.0〜3.0重量％的Al（“a”），0.25〜3.0重量％的Zn（“b”）和0.5〜4.0重量％的RE：其中当“b”在一定范围内时 ，0.25“=”，“a”和“c”满足关系“c”=“a”+1.0; 并且当“b”在一个范围内时，“a”，“b”和“c”满足关系式，“c”=“a”+“b”