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

An inertial sensor, gold-platinum alloy technology, applied in the field of metal materials to achieve uniform chemical composition distribution, avoid contact and pollution, and refine grains

Active Publication Date: 2022-03-22
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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Embodiment 1

[0036] Embodiment 1 (common casting)

[0037] In this embodiment, gold and platinum with a purity of 99.99wt.% are first purchased as raw materials, and the contents of impurity elements iron Fe, nickel Ni, and cobalt Co are all lower than 0.001wt.%. Under the assisted action of ultrasonic waves, the raw materials of gold and platinum blocks were washed three times with acetone solution and deionized water respectively, and then dried by heating in an oven at 400°C. The alloy is configured according to the designed composition, wherein the mass percentage of element platinum is 26.5wt.%, and the balance element is gold. The vacuum induction melting furnace was heated and baked until the furnace temperature reached about 300°C. Then, place the configured gold and platinum raw materials in a high-purity high-temperature resistant quartz crucible (crucible raw material adopts grade II quartz sand, SiO 2 Purity ≥ 99.98wt%), close the furnace door to evacuate, when the vacuum deg...

Embodiment 2

[0039] Embodiment 2 (common casting+rare earth lanthanum La)

[0040] In this embodiment, gold and platinum with a purity of 99.99wt.% are first purchased as raw materials, and the contents of impurity elements iron Fe, nickel Ni, and cobalt Co are all lower than 0.001wt.%. Under the assisted action of ultrasonic waves, the raw materials of gold and platinum blocks were washed three times with acetone solution and deionized water respectively, and then dried by heating in an oven at 400°C. The alloy is configured according to the designed 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, place the configured gold and platinum raw materials in a high-purity high-temperature-resistant quartz crucible, close the furnace d...

Embodiment 3

[0042] Embodiment 3 (common casting+boron element)

[0043] In this embodiment, gold and platinum with a purity of 99.99wt.% are first purchased as raw materials, and the contents of impurity elements iron Fe, nickel Ni, and cobalt Co are all lower than 0.001wt.%. Under the assisted action of ultrasonic waves, the raw materials of gold and platinum blocks were washed three times with acetone solution and deionized water respectively, and then dried by heating in an oven at 400°C. The alloy is configured according to the designed composition, wherein the mass percentage of element platinum is 26.5 wt.%, the mass percentage content of modifying 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, place the configured gold and platinum raw materials in a high-purity high-temperature-resistant quartz crucible, close the furnace door to vacuumize, and when the v...

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Abstract

The invention belongs to the field of metal materials, and particularly relates to a gold-platinum alloy quality inspection material for a space gravitational wave detection inertial sensor and a preparation method of the gold-platinum alloy quality inspection material. The material mainly comprises diamagnetic precious metal gold Au, paramagnetic precious metal platinum Pt, one or two of modified element boron B, rare earth element lanthanum La and neodymium Nd, the mass percentage content of the element platinum is 5-35 wt.%, the mass percentage content of the modified element is less than 1%, and the balance is gold. The method comprises the following steps: firstly, carrying out ultrasonic cleaning, heating and drying on high-purity gold and platinum raw materials with the purity not lower than 99.99 wt.%; then, the vacuum induction heating technology is adopted, gold and platinum raw materials and modified elements are heated to 1450-1650 DEG C in a crucible to be smelted into alloy liquid, after heat preservation is conducted for a period of time, the alloy liquid is poured into a prefabricated mold, and an alloy bar with the preset size is manufactured; and finally, an advanced solidification preparation technology is adopted for achieving rapid remelting and cooling solidification on the gold-platinum alloy bar, and then the high-quality gold-platinum alloy inspection quality material is prepared.

Description

technical field [0001] The invention belongs to the field of metal materials, and in particular relates 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 Laser Interferometer Gravitational-Wave Observatory of the United States announced that the LIGO (Laser Interferometer) detector had observed the impact sound of gravitational waves, and mankind heard the greeting from outer space for the first time—the merger of double black holes of gravitational waves. In recent years, the research on gravitational wave detection in space has developed rapidly. Scientists in my country 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 wa...

Claims

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Application Information

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Patent Type & Authority Applications(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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