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High-performance gold-vanadium alloy material as well as preparation method and application thereof

A gold-vanadium alloy and vanadium alloy technology, which is applied in the field of gold-based alloys and their preparation, can solve the problems of easy segregation of components and difficult addition of vanadium elements, and achieve the effects of uniform components, accurate vanadium content and improved comprehensive performance.

Inactive Publication Date: 2019-07-19
BEIJING INST OF NONFERROUS METALS & RARE EARTH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] One of the objects of the present invention is to provide a kind of gold-vanadium master alloy with higher vanadium content and the preparation method of the gold-vanadium master alloy material, which utilizes unique vacuum magnetron doping technology, can make vanadium with higher melting point Evenly added to the gold, which solves the problem of difficult addition of vanadium in the alloy and easy segregation of components

Method used

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  • High-performance gold-vanadium alloy material as well as preparation method and application thereof

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preparation example Construction

[0053] A method for preparing a gold-vanadium alloy material, using a unique vacuum magnetron doping technology, firstly, preparing a gold-vanadium master alloy with a higher vanadium content; then, combining the gold-vanadium master alloy with a higher vanadium content with gold Melting and refining, the gold vanadium alloy material is prepared. Including the following steps:

[0054] 1) Calculate and weigh high-purity (5N) gold and metal vanadium according to the required proportioning range;

[0055] 2) Use a high-frequency induction vacuum furnace equipped with electromagnetic control, put gold and vanadium in the order of gold and vanadium into a zirconia crucible covered with graphite, then cover the furnace cover and vacuumize;

[0056] 3) Heating up, the power is given to 70%-80% of the rated power of the equipment, the purpose is to quickly heat up;

[0057] 4) After the gold is completely melted, keep the power value unchanged, turn on the magnetic control stirring...

Embodiment 1

[0064] Adopt following preparation method to prepare gold-vanadium master alloy, its composition and mass percent are: V: 5%, Au: surplus (abbreviated AuV 5 ).

[0065] The preparation process is as follows:

[0066] a) Prepare raw materials: Purify gold 4N (99.99%) raw materials by electrolysis to remove impurity elements (mainly control Pb, Sb, In, Bi and rare earth elements), so that the purity of metal gold can reach more than 5N (>99.999 %), purchased metal vanadium raw materials; calculated and weighed according to the above-mentioned composition and mass percentage proportioning.

[0067] b) Using a high-frequency induction vacuum furnace equipped with electromagnetic control, put gold and vanadium in the order of gold and vanadium in a zirconia crucible covered with graphite, then cover the furnace cover and vacuumize;

[0068] c) Heating up, the power is given to 75% of the rated power of the equipment, the purpose is to quickly heat up;

[0069] d) After the gold ...

Embodiment 2

[0074] Adopt the method described in embodiment 1 to prepare gold vanadium master alloy, its composition and mass percent are: V: 10%, Au: balance (being called for short AuV 10 ).

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Abstract

The invention relates to a high-performance gold-vanadium alloy material as well as a preparation method and application thereof. The alloy is mainly applied to preparation of a metallization system in silicon microwave power transistors. The gold-vanadium alloy is composed of 0.1-9.9 wt% of V, and the balance Au. After the materials are proportioned, high-frequency induction vacuum furnace equipment with electromagnetic control is used, magnetic control stirring is started in the smelting process, so that the metal vanadium is fully melted; a furnace body is filled with argon; heating is stopped, the molten metal is poured into a cast iron mold, cooled with the furnace and then taken out, and then an intermediate alloy ingot with relatively high vanadium content is obtained; and the obtained gold-vanadium intermediate alloy is melted and refined together with gold through the same method so as to obtain the gold-vanadium alloy with relatively low vanadium content. The alloy is subjected to drawing, rolling and heat treatment process to obtain a wire material, a target material and a strip material. The gold-vanadium intermediate alloy disclosed by the invention has relatively highvanadium content, and is small in error range and uniform in vanadium content; and the requirement for preparation of the metallization system in the silicon microwave power transistor is met.

Description

technical field [0001] The invention relates to a gold-based alloy and a preparation method thereof, in particular to a high-performance gold-vanadium alloy material and a preparation method and application thereof. The alloy is made by adding element vanadium to gold to form a gold-vanadium alloy material. The alloy is mainly used in the preparation of metallization systems in silicon microwave power transistors. Background technique [0002] Because gold-vanadium alloy materials have the characteristics of high electrical conductivity and good electrical corrosion resistance, they are mainly used for the metallization of silicon power transistors in the P.L.S. band. Due to the good performance of this material, it can also be extended to other application fields, such as TV receiver line scanning circuit, oscilloscope deflection circuit, high-voltage switch circuit, etc., or made into gold-vanadium alloy wire for coating, which has a wide application prospect . [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C5/02C22C1/03C23C14/24C23C14/14C22F1/14C21D9/52H01L29/45
CPCC21D9/52C21D9/525C22C1/03C22C5/02C22F1/14C23C14/14C23C14/24H01L29/45
Inventor 陈怡兰章明溪史秀梅宋文杰李艳涛韩鹏
Owner BEIJING INST OF NONFERROUS METALS & RARE EARTH
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