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Titanium single crystal with target crystal plane surface and preparation method thereof

A single crystal, crystal face technology, applied in the field of crystals, can solve the problem of inability to obtain titanium single crystals, and achieve the effect of high preparation efficiency and wide application range

Active Publication Date: 2021-05-07
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a method for preparing a titanium single crystal with a target crystal plane surface and a titanium single crystal with a target crystal plane surface to solve the problem that the traditional process cannot obtain a titanium single crystal with the desired target crystal plane.

Method used

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  • Titanium single crystal with target crystal plane surface and preparation method thereof
  • Titanium single crystal with target crystal plane surface and preparation method thereof
  • Titanium single crystal with target crystal plane surface and preparation method thereof

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preparation example Construction

[0040] An embodiment of the present invention provides a method for preparing a titanium single crystal having a target crystal plane surface, using a rotating and transforming clamping device, and including:

[0041] S100, provide a titanium single crystal sample with a grain size greater than 5mm;

[0042] S200, mark on the titanium single crystal sample, and establish a sample coordinate system of the titanium single crystal sample, defined as Omnl;

[0043] S300. Establish the crystal coordinate system of the target crystal plane in the titanium single crystal sample on the sample coordinate system according to the right-hand rule, and obtain the Euler angle (α, β,0);

[0044]S400. Clamp the titanium single crystal sample on the rotation conversion clamping device, the rotation conversion clamping device includes a first rotation element, a second rotation element and a clamping element, and the second rotation element is set On the first rotating element, the clamping e...

Embodiment

[0086] see figure 2 , the rotation conversion clamping device includes a right-angle fixed block 500 , a first rotation element 100 , a right-angle connection block 400 , a second rotation element 200 and a clamping element 300 connected in sequence. It is stipulated that the coordinate system of the rotation transformation clamping device is OXYZ.

[0087] The right-angle fixed block 500 is the base of the rotation transformation clamping device, and is used to be connected with the workbench of the wire cutting machine with the metal cutting wire, and the bottom surface of the right angle fixed block 500 is the XY plane of the rotation transformation clamping device.

[0088] The first rotating element 100 includes a first base 140, a first rotating platform 120, and a first rotating shaft (not shown) perpendicular to the first base 140 and the first rotating platform 120 and arranged between them. The second rotating element 200 includes a second base 240, a second rotati...

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Abstract

The invention discloses a method for preparing a titanium single crystal with a target crystal plane surface, which adopts a rotating and transforming clamping device, and includes: providing a titanium single crystal sample with a grain size larger than 5 mm; making a titanium single crystal sample on the titanium single crystal sample mark, establish the sample coordinate system of the titanium single crystal sample, defined as Omnl; establish the crystal coordinate system of the target crystal plane in the titanium single crystal sample, and obtain the Euler angles (α, β, 0 ); the titanium single crystal sample is clamped on the rotation conversion clamping device; according to the marks made on the titanium single crystal sample, the first rotating element and the second rotating element are rotated so that the sample coordinate system Omn1 and the coordinates of the rotation conversion clamping device The coordinate system OXYZ is coincident so that the coordinate system OXYZ is zero-adjusted and fixed; the second rotating element drives the clamping element to rotate an angle α on the second axis; the first rotating element drives the second rotating element and the clamping element to rotate an angle β on the first axis ; and cutting the titanium single crystal sample with the cutting element in a cutting direction parallel to the XY plane.

Description

technical field [0001] The invention relates to the field of crystal technology, in particular to a titanium single crystal with a target crystal plane surface and a preparation method thereof. Background technique [0002] Titanium has the characteristics of excellent specific strength, fracture toughness, heat resistance, corrosion resistance and biocompatibility, and has broad applications in aerospace, biomedicine, marine chemical industry, automotive nuclear power and other fields. Single crystal α-titanium has a close-packed hexagonal structure, and its surface properties (including physical, chemical, mechanical, and biological properties) often present significant anisotropy, which has an important impact on the system stability and service life of titanium metals and devices. Therefore, according to the application field and specific requirements, it is necessary to design and prepare a titanium single crystal wafer with a specific crystallographic orientation on th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B28D5/04B28D7/04C30B29/02C22F1/18C22F1/02
CPCB28D5/0082B28D5/045C22F1/02C22F1/183C30B29/02
Inventor 马丽然石志峰
Owner TSINGHUA UNIV
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