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AB type hydrogen storage alloy used for storing tritium and preparation method of AB type hydrogen storage alloy

A hydrogen storage alloy, AB type technology, applied in the field of hydrogen storage alloys, can solve the problems of decreased cycle life, irreversible loss of hydrogen storage capacity, etc., and achieve the effects of increasing cycle life, excellent cycle life, and improved attenuation.

Inactive Publication Date: 2016-05-11
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ZrCo alloy will undergo hydrogen-induced disproportionation reaction during use to generate thermodynamically stable ZrH 2 Phase and ZrCo 2 phase, resulting in the loss of irreversible hydrogen storage capacity and the decrease of its own cycle life

Method used

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  • AB type hydrogen storage alloy used for storing tritium and preparation method of AB type hydrogen storage alloy
  • AB type hydrogen storage alloy used for storing tritium and preparation method of AB type hydrogen storage alloy
  • AB type hydrogen storage alloy used for storing tritium and preparation method of AB type hydrogen storage alloy

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Embodiment 1

[0046] Embodiment 1 of the present invention provides an AB type hydrogen storage alloy for storing tritium, and its component general formula is Zr 0.9 Ti 0.1 co 0.9 Fe 0.1 , wherein the purity of each raw material is 99%.

[0047] This embodiment also provides a method for preparing the above-mentioned hydrogen storage alloy, comprising the following steps:

[0048] (1) After cleaning and drying each raw material, carry out batching and weighing, during batching, according to the amount of each raw material, Ti is additionally added by 1%, Fe is additionally added by 2.5%, and Co is additionally added by 3%;

[0049] (2) After mixing the prepared raw materials evenly, place them in a water-cooled copper crucible in a vacuum non-consumable arc melting furnace, reserve a water-cooled copper crucible, and place high-purity Ti metal (purity is 99.9%) in it, and then The furnace cavity of the vacuum non-consumable arc melting furnace is vacuumed successively by using the mech...

Embodiment 2

[0058] Embodiment 2 of the present invention provides an AB type hydrogen storage alloy for storing tritium, and its component general formula is Zr 0.8 Ti 0.2 co 0.9 Fe 0.1 , wherein the purity of each raw material is 99.9%.

[0059] This embodiment also provides a method for preparing the above-mentioned hydrogen storage alloy, comprising the following steps:

[0060] (1) After cleaning and drying each raw material, carry out batching and weighing, during batching, according to the amount of each raw material, Ti is additionally added by 1%, Fe is additionally added by 2.5%, and Co is additionally added by 3%;

[0061] (2) After mixing the prepared raw materials evenly, place them in a water-cooled copper crucible in a vacuum non-consumable arc melting furnace, reserve a water-cooled copper crucible, place high-purity Ti metal (purity is 99.99%) in it, and then The furnace cavity of the vacuum non-consumable arc melting furnace is vacuumed successively by using the mecha...

Embodiment 3

[0070] Embodiment 3 of the present invention provides an AB type hydrogen storage alloy for storing tritium, and its component general formula is Zr 0.7 Ti 0.3 co 0.9 Fe 0.1 , wherein the purity of each raw material is 99.5%.

[0071] This embodiment also provides a method for preparing the above-mentioned hydrogen storage alloy, comprising the following steps:

[0072] (1) After cleaning and drying each raw material, carry out batching and weighing, during batching, according to the amount of each raw material, Ti is additionally added by 1%, Fe is additionally added by 2.5%, and Co is additionally added by 3%;

[0073] (2) After mixing the prepared raw materials evenly, place them in a water-cooled copper crucible in a vacuum non-consumable arc melting furnace, reserve a water-cooled copper crucible, place high-purity Ti metal (purity is 99.95%) in it, and then The furnace cavity of the vacuum non-consumable arc melting furnace is vacuumed successively by using the mecha...

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Abstract

The invention provides an AB type hydrogen storage alloy used for storing tritium and a preparation method of the AB type hydrogen storage alloy, and relates to the technical field of hydrogen storage alloy. The general formula of components of the AB type hydrogen storage alloy used for storing the tritium is Zr1-xTixCo1-yFey, wherein the x is greater than or equal to 0.1 but smaller than or equal to 0.4, and the y is greater than or equal to 0.1 but smaller than or equal to 0.2. The hydrogen storage alloy provided by the invention has good hydrogen-induced disproportionation resistance, and excellent hydrogen absorption and desorption kinetics performance and indoor-temperature hydride balance pressure, and the preparation method of the hydrogen storage alloy is simple, easy to implement and high in preparation efficiency and practicability.

Description

technical field [0001] The invention relates to the technical field of hydrogen storage alloys, in particular to an AB type hydrogen storage alloy for storing tritium and a preparation method thereof. Background technique [0002] Tritium is an important strategic resource, which plays a decisive role in important fields such as energy and national defense. As an artificial nuclide, tritium can only be obtained through nuclear reactions in nuclear reactors and accelerators, and tritium will decay into helium 3 through spontaneous beta decay, with a half-life of only 12.33a. The scarcity, radioactivity and key role of tritium in the fields of energy and national defense determine the importance of fast, safe and reliable storage, transportation and supply of tritium in tritium-related systems. [0003] The safe handling, storage and transportation of tritium require that the hydrogen (tritium) compound equilibrium pressure at room temperature of the hydrogen storage alloy us...

Claims

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Application Information

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IPC IPC(8): C22C30/00C22C1/02C22F1/00
CPCC22C1/02C22C16/00C22C19/07C22C30/00C22F1/00C22F1/10C22F1/186
Inventor 张光辉
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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