POWDER PRODUCTION BY HYDROGEN PULVERIZATION OF FUNCTIONAL INTERMETALLICS AND DEVELOPMENT OF CLOSED SYSTEM FOR POWDER CONSOLIDATION
功能金属间化合物氢制粉体及封闭粉体固结系统的研制
基本信息
- 批准号:07555509
- 负责人:
- 金额:$ 1.66万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (A)
- 财政年份:1995
- 资助国家:日本
- 起止时间:1995 至 1997
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In order to develop a powder production process of structural intermetallics via hydrogen pulverization and to improve cycling lifetime of hydrogen absorption and desorption in hydrogen absorbing intermetallics, hydrogen pulverization mechanisms have been investigated using Nb_3Al and NbCr_2 base intermetallic alloys. Since the ability of hydrogen absorption is sensitive to the surface oxide film covering intermetallics, all samples were prepared without exposing to air in a specially designed closed system. In this system a glove box is attached to a vacuum furnace. Hydrogen absorption-desorption curves were measured, lattice constants were calculated before and after hydrogenation, and shape and size of pulverized particles were observed by optical and scanning electron microscopy. In Nb-Al binary alloys pulverization occurs only in two phase alloys, Nb_3Al/Nb and Nb_3Al/Nb_2AI.Monolithic Nb_3AI, Nb_2A1 and Nb are not pulverized, although they can absorb a considerable amount of hydrogen. In Nb-Cr binary alloys, only Nb solid solution can absorb hydrogen among constituent phases, Nb, NbCr_2, and Cr. Pulverization takes place only in Nb/NbCr_2 two phase alloys. When NbCr_2 is alloyed with Ti, it can absorb hydrogen. Ti-containing monolithic NbCr_2 is pulverized by hydrogenation. From these results, it is concluded that pulverization is initiated at a crack in an intermetallic compound which is caused by difference in dilatation either of both phases accompanied with hydrogen absorption or of surface and interior generated by a gradient of hydrogen content.
为了开发氢粉化制备结构金属间化合物粉末的工艺,提高吸氢金属间化合物的吸放氢循环寿命,本文以Nb_3Al和NbCr_2基金属间化合物为研究对象,研究了氢粉化机理。由于金属间化合物的吸氢能力与其表面氧化膜有关,因此所有样品都是在不暴露于空气的条件下在一个专门设计的封闭系统中制备的。在该系统中,手套箱连接到真空炉。测定了吸放氢曲线,计算了氢化前后的晶格常数,并通过光学显微镜和扫描电镜观察了粉末颗粒的形状和尺寸。在Nb-Al二元合金中,只有Nb_3Al/Nb和Nb_3Al/Nb_2Al两相合金发生粉化,Nb_3Al、Nb_2Al和Nb的块状物虽然能吸收大量的氢,但不发生粉化。在Nb-Cr二元合金中,Nb、NbCr_2和Cr相中只有Nb固溶体可以吸氢。粉化只发生在Nb/NbCr_2两相合金中。NbCr_2与Ti合金化后,可吸氢。采用氢化法将含钛整体式NbCr_2粉化。从这些结果中,可以得出结论,粉化开始于金属间化合物中的裂纹,这是由伴随氢吸收的两相或由氢含量梯度产生的表面和内部的膨胀差异引起的。
项目成果
期刊论文数量(14)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
千星聡、細田秀樹、花田修治: "Nb_3Al基合金の水素処理による微粉化に及ぼす第二相の影響" 日本金属学会誌. 61. 1132-1138 (1997)
Satoshi Senboshi、Hideki Hosoda、Shuji Hanada:“第二相对氢处理对 Nb_3Al 基合金粉化的影响”日本金属学会杂志 61. 1132-1138 (1997)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
小菅真朗、細田秀樹、花田修治: "水素処理によるNb-Cr合金粉末の作製" 日本金属学会誌. 62. 681-689 (1998)
Masaaki Kosuge、Hideki Hosoda、Shuji Hanada:“通过氢处理制备 Nb-Cr 合金粉末”,日本金属学会杂志 62. 681-689 (1998)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
M.Kosuge, H.Hosoda and S.Hanada: "Preparation of Nb-Cr Alloy powder by hydrogenation" J.Japan Inst.Metals. 62. 681-689 (1998)
M.Kosuge、H.Hosoda 和 S.Hanada:“氢化制备 Nb-Cr 合金粉末”J.Japan Inst.Metals。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
H.Hosoda, S.Hanada: "Hydrogen absorption of Nb-Al alloy balk specimens" J.Alloys and Compounds. 281. 268-274 (1998)
H.Hosoda、S.Hanada:“Nb-Al 合金块样品的吸氢”J.合金和化合物。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
S.Semboshi, T.Tabaru, H.Hosoda and S.Hanada: "Effect of microsturucture on hydrogen pulverization of Nb_3Al/Nb two phase alloys" Intermetallics. 6. 61-69 (1998)
S.Semboshi、T.Tabaru、H.Hosoda 和 S.Hanada:“微观结构对 Nb_3Al/Nb 两相合金氢粉化的影响”金属间化合物。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
HANADA Shuji其他文献
HANADA Shuji的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('HANADA Shuji', 18)}}的其他基金
Processing for multi-functions・Materials development
多功能加工・材料开发
- 批准号:
11221202 - 财政年份:1999
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas (B)
Alloy design of cyclic hydro and dehydrogenation tolerant hydrogen storage materials
耐循环加氢和脱氢储氢材料的合金设计
- 批准号:
11305048 - 财政年份:1999
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Harmonic Material Design of Multi-Functional Composites
多功能复合材料的调和材料设计
- 批准号:
11221101 - 财政年份:1999
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
EVALUATION OF Nb SOLID SOLUTIONS AS MATRIX OF COMPOSITES FOR VERY HIGH TEMPERATURE STRUCTURAL APPLICATIONS
评估铌固体溶液作为复合材料基体的超高温结构应用
- 批准号:
08405045 - 财政年份:1996
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
Microstructure design and control of intermetallics
金属间化合物的微观结构设计与控制
- 批准号:
04239101 - 财政年份:1992
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas
Strength of Intermetallic Matrix Composites by Controlling Interface Reactions
通过控制界面反应提高金属间基复合材料的强度
- 批准号:
03452253 - 财政年份:1991
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for General Scientific Research (B)
相似海外基金
Synthesis of hydrogen absorbing alloy in nanocarbons and evaluation of their properties for hydrogen absorption and separation
纳米碳吸氢合金的合成及其吸氢分离性能评价
- 批准号:
21360394 - 财政年份:2009
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Direct Electrolysis Process of Hydrogen absorbing alloy films from Molten Salts and Film Characterization
熔盐直接电解吸氢合金膜工艺及膜表征
- 批准号:
10450280 - 财政年份:1998
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B).
Study on the Combustion Synthesis for Producing High Performance Hydrogen Absorbing Alloy
燃烧合成生产高性能吸氢合金的研究
- 批准号:
09450276 - 财政年份:1997
- 资助金额:
$ 1.66万 - 项目类别:
Grant-in-Aid for Scientific Research (B)