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A kind of gold-platinum alloy inspection quality material for space gravitational wave detection inertial sensor and preparation method thereof

An inertial sensor, gold-platinum alloy technology, applied in the field of metal materials, to achieve the effect of refining grains, ultra-low magnetic susceptibility, and promoting leap

Active Publication Date: 2022-07-26
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a gold-platinum alloy test quality material for space gravitational wave detection inertial sensors and its preparation method, to solve the technical bottleneck problem of the test quality for space gravitational wave detection in my country in terms of material design and preparation

Method used

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  • A kind of gold-platinum alloy inspection quality material for space gravitational wave detection inertial sensor and preparation method thereof
  • A kind of gold-platinum alloy inspection quality material for space gravitational wave detection inertial sensor and preparation method thereof
  • A kind of gold-platinum alloy inspection quality material for space gravitational wave detection inertial sensor and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Example 1 (ordinary casting)

[0037] In this embodiment, gold and platinum with a purity of 99.99 wt.% are first purchased as raw materials, wherein the contents of impurity elements Fe, Ni, and Co are all lower than 0.001 wt.%. Under the aid of ultrasonic waves, the gold and platinum bulk raw materials were washed three times with acetone solution and deionized water successively, and then dried in a 400°C oven after drying. The alloy is configured according to the design composition, wherein the mass percentage of elemental platinum is 26.5 wt.%, and the balance element is gold. The vacuum induction melting furnace was heated and baked until the furnace temperature reached about 300°C. Then, the prepared gold and platinum raw materials are placed in a high-purity and high-temperature resistant quartz crucible (the crucible is made of grade II quartz sand, SiO 2 purity ≥ 99.98wt%), close the furnace door to evacuate, when the vacuum degree in the vacuum induction me...

Embodiment 2

[0039] Example 2 (ordinary casting + rare earth lanthanum La)

[0040] In this embodiment, gold and platinum with a purity of 99.99 wt.% are first purchased as raw materials, wherein the contents of impurity elements Fe, Ni, and Co are all lower than 0.001 wt.%. Under the aid of ultrasonic waves, the gold and platinum bulk raw materials were washed three times with acetone solution and deionized water successively, and then dried in a 400°C oven after drying. The alloy is configured according to the design composition, wherein the mass percentage content of element platinum is 26.5 wt.%, the mass percentage content of modified rare earth element lanthanum La is 0.5%, and the balance element is gold. The vacuum induction melting furnace was heated and baked until the furnace temperature reached about 300°C. Then, put the prepared gold and platinum raw materials in a high-purity and high-temperature resistant quartz crucible, close the furnace door and evacuate, when the vacuum...

Embodiment 3

[0042] Example 3 (ordinary casting + boron element)

[0043] In this embodiment, gold and platinum with a purity of 99.99 wt.% are first purchased as raw materials, wherein the contents of impurity elements Fe, Ni, and Co are all lower than 0.001 wt.%. Under the aid of ultrasonic waves, the gold and platinum bulk raw materials were washed three times with acetone solution and deionized water successively, and then dried in a 400°C oven after drying. The alloy is prepared according to the design composition, wherein the mass percentage of element platinum is 26.5 wt.%, the mass percentage of modified element boron B is 0.05%, and the balance element is gold. The vacuum induction melting furnace was heated and baked until the furnace temperature reached about 300°C. Then, put the prepared gold and platinum raw materials in a high-purity and high-temperature resistant quartz crucible, close the furnace door and evacuate, when the vacuum degree in the vacuum induction melting cha...

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Abstract

The invention belongs to the field of metal materials, in particular to a gold-platinum alloy inspection quality material for space gravitational wave detection inertial sensors and a preparation method thereof. The material mainly includes diamagnetic noble metal gold Au and paramagnetic noble metal platinum Pt, and one or two of modified element boron B, rare earth element lanthanum La and neodymium Nd, wherein the mass percentage of element platinum is 5-35wt. %, the mass percentage of modified elements is less than 1%, and the balance is gold. First, ultrasonic cleaning and heating and drying are carried out on the high-purity gold and platinum raw materials with a purity of not less than 99.99wt.%; then, using vacuum induction heating technology, the gold and platinum raw materials and modified elements are heated in a crucible to 1450-1650 ℃ smelted into alloy liquid, and cast into prefabricated molds after holding for a period of time to make alloy bars of predetermined size; finally, advanced solidification preparation technology is used to achieve rapid remelting and cooling and solidification of gold-platinum alloy bars, and then prepare high-quality alloy bars. The gold-platinum alloy inspection quality material.

Description

technical field [0001] The invention belongs to the field of metal materials, in particular to a gold-platinum alloy inspection quality material for space gravitational wave detection inertial sensors and a preparation method thereof. Background technique [0002] Einstein predicted the existence of gravitational waves based on general relativity. In February 2016, the US Laser Interferometer Gravitational Wave Observatory announced that the LIGO (Laser Interferometer) detector had observed the impact of gravitational waves, and human beings heard greetings from outer space for the first time - the merger of two black holes. gravitational waves. In recent years, the research on space gravitational wave detection has developed rapidly. Chinese scientists predict that the discovery of gravitational waves will enable humans to detect cosmoscopic scales and new celestial phenomena that cannot be observed based on electromagnetic waves. [0003] The inertial sensor is the core...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/02C30B13/00C22C1/02
CPCC22C5/02C22C1/02C30B13/00
Inventor 何杰刘义杨鹏举
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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