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Method for determining TiB2-ceramic-particle-enhanced aluminium-based composite material component

A technology of ceramic particles and reinforced aluminum base, applied in the direction of material excitation analysis, thermal excitation analysis, etc., can solve problems such as splashing, deflagration, and affecting the accuracy of sample testing, and achieve the effect of ensuring completeness, complete dissolution, and accurate measurement

Active Publication Date: 2018-08-10
SHANGHAI JIAO TONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ferrous metallurgy industry standard of the People's Republic of China (YB / T178.1-2012) "Silicon-aluminum alloy and silicon-barium-aluminum alloy: Determination of silicon content perchloric acid dehydration gravimetric method" (can measure 15-45% silicon content) stipulates A sample dissolution method for the determination of various elemental components in high-silicon-content aluminum alloys using chemical methods, but this method is used to dissolve in-situ authigenic TiB 2 The ceramic particle reinforced aluminum matrix composite material sample cannot meet the requirements of the test sample
At the same time, during the high-temperature oxidation process, sample loss phenomena such as deflagration and splashing are prone to occur, which affects the test accuracy of the sample.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Accurately weigh the design composition as (Si: 0, TiB 2 : 4wt%, Ti / B=2.2175, the remainder is aluminum and other elements) in-situ self-generated TiB 2 Add 1g (accurate to 0.0001g) of ceramic particle reinforced aluminum matrix composite material sample into a 400ml polytetrafluoroethylene beaker, then add 25ml, 25% tetramethylamine hydroxide, after the violent reaction stops, evaporate and concentrate the sample at low temperature To a colloidal solution, cool the above sample to room temperature, add 3g of potassium perchlorate powder, stir evenly with a polytetrafluoroethylene stirring rod, after the oxidation reaction is complete, add 1+1 (v / v) hydrochloric acid solution, adjust to pH=1 About, after 500ml constant volume, the obtained sample to be tested can be directly determined by ICP-AES elements, and the measured results are: Si: 0.0280%, TiB 2 : 3.8012%, Ti / B=2.2502.

Embodiment 2

[0032] Accurately weigh the design components (Si: 12%, TiB 2 : 4.8%, Ti / B=2.2175, the remainder is aluminum and other elements) is in-situ self-generated TiB 2 Add 1g (accurate to 0.0001g) of ceramic particle reinforced aluminum matrix composite material sample into a 400ml polytetrafluoroethylene beaker, then add 25ml, 10mol sodium hydroxide, after the violent reaction stops, evaporate and concentrate the sample to a colloidal solution , the above sample was cooled to room temperature, added 3g of sodium peroxide powder, stirred evenly with a polytetrafluoroethylene stirring rod, after the oxidation reaction was complete, added 1+1 (v / v) hydrochloric acid solution, adjusted to about pH=1, 500ml After constant volume, the obtained sample to be tested can be directly subjected to ICP-AES element determination, and the measurement results are: Si: 13.2393%, TiB 2 : 4.432%, Ti / B=2.134.

Embodiment 3

[0034] Accurately weighed components are designed as (Si: 12%, TiB 2 : 4%, Ti / B=2.2175, the remainder is aluminum and other elements) in-situ self-generated TiB 2Add 1g (accurate to 0.0001g) of ceramic particle reinforced aluminum matrix composite material sample into a 400ml polytetrafluoroethylene beaker, then add 12ml, 5mol potassium hydroxide, after the violent reaction stops, evaporate and concentrate the sample to a colloidal solution , the above sample was cooled to room temperature, added 2g of chromium trioxide powder, stirred evenly with a polytetrafluoroethylene stirring rod, after the oxidation reaction was completed, added 1+1 (v / v) hydrochloric acid solution, adjusted to about pH=1, 500ml After constant volume, the obtained sample to be tested can be directly subjected to ICP-AES element determination, and the measurement results are: Si: 12.4686%, TiB 2 : 3.8089%, Ti / B=2.2702.

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Abstract

The invention provides a method for determining a TiB2-ceramic-particle-enhanced aluminium-based composite material component. The method comprises preparing a to-be-determined sample by adopting a method of dissolving an in-situ synthesized TiB2-ceramic-particle-enhanced aluminium-based composite material, and determining ICP-AES elements in the clear to-be-determined sample solution. The in-situsynthesized TiB2-ceramic-particle-enhanced aluminium-based composite material is dissolved via a strong alkali solution, and then low temperature oxidation is carried out to obtain the to-be-determined sample, so that a TiB2 ceramic particle component and silicon components with different silicon contents in the in-situ synthesized TiB2-ceramic-particle-enhanced aluminium-based composite materialcan be smoothly dissolved. In the whole process, high temperature oxidation is not required, explosion, burning, and splashing loss of the sample can be prevented, and the completeness of the sampleis efficiently ensured, which establishes the material base of accurately determining the content of various elements in the composite material in such series via ICP-AES and controlling and improvingthe quality of products.

Description

technical field [0001] The invention belongs to the technical field of detection and analysis of composite materials, in particular to a method for measuring in-situ self-generated TiB 2 The method of ceramic particle reinforced aluminum matrix composite material element composition lays a material foundation for accurately determining the content of various elements in the composite material by ICP-AES, improving and controlling product quality. Background technique [0002] Composite materials are composed of two or more materials with different properties, which are composed of materials with new properties in the macro (micro) through physical or chemical methods. Various materials produce synergistic effects in performance, so that the comprehensive performance of the composite material is better than that of the original constituent materials to meet various requirements. [0003] In situ self-generated TiB 2 Ceramic particle reinforced aluminum matrix composites are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
CPCG01N21/73
Inventor 刘预王鹏举陈东夏存娟王磊吴浩
Owner SHANGHAI JIAO TONG UNIV
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