YS/T 1270-2018 in English
VALIDYttria stabillized zirconia powders
- Issued on:2018-10-22
- Implemented on:2019-04-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$97.00
本标准规定了氧化钇稳定氧化锆粉末的要求、试验方法、检验规则及标志、包装、运输、贮存、质量证明书和合同（或订货单）内容。
本标准适用于热喷涂用氧化钇稳定氧化锆粉末
Introduction
Standard Overview and Technical Background
YS/T 1270-2018 is a professional technical standard developed by my country's nonferrous metals industry for yttria-stabilized zirconia powder for thermal spraying. Published in October 2018 and implemented in April 2019, the standard was jointly drafted by several research institutions, including the Beijing Mining and Metallurgical Technology Group, marking a significant advancement in the standardization of high-end ceramic powder materials in my country.
Analysis of product classification system
| Classification dimension | Type identification | Technical characteristics |
|---|---|---|
| Yttrium content | 7Y/12Y/20Y | Y₂O₃ mass fractions are 6-8%, 11-13% and 18-22% respectively |
| Production method | CS/SS/MC | Co-precipitation sintering/spray granulation sintering/melt crushing |
| Purity grade | A/B | The content of Class A impurities is ≤0.05%, and that of Class B is relaxed to 0.5-0.8% |
Detailed explanation of key technical indicators
3.1 Chemical composition requirements
The standard stipulates that ZrO₂+HfO₂ is used as the matrix remainder, and the content of impurities such as Fe₂O₃, SiO₂, Al₂O₃, and TiO₂ is strictly controlled. 1.5-2.0μm
Y₂O₃ content was determined according to GB/T 14635, and other elements were detected according to YS/T 568 series standards:
- Fe₂O₃: o-phenanthroline spectrophotometry
- SiO₂: molybdenum blue spectrophotometry
- Al₂O₃: chrome azurol S spectrophotometry
4.2 Physical properties test
Particle size is tested using the double standard method: ≥45μm according to GB/T 1480, <45μm according to GB/T 19077 laser diffraction method.
Application Selection Recommendations
| Application Scenarios | Recommended Grades | Advantageous Characteristics |
|---|---|---|
| Aerospace Engine Thermal Barrier Coatings | FZrO₂-7Y₂O₃-SS(A) | High Purity and Good Sphericity |
| Petrochemical Wear-Resistant Coatings | FZrO₂-20Y₂O₃-SS(B) | Strong Phase Stability |
| Medical Device Coatings | FZrO₂-12Y₂O₃-CS(A) | Good biocompatibility |
Special precautions
According to clauses 6.3-6.4 of the standard, attention should be paid to transportation and storage:
- Use moisture-proof packaging and mark with warning signs
- Avoid storage with acidic and alkaline substances
- Recommended storage humidity ≤40%RH
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