메타텅스텐산암모늄(AMT) 용액은 분무 건조를 통해 입자 크기가 0.1~1마이크론으로 제어된 초미세 텅스텐 분말을 생산할 수 있습니다. 이 텅스텐 분말은 항공 엔진 블레이드의 내마모 코팅과 같은 열 분사 코팅에 널리 사용됩니다. 제조 과정은 다음과 같습니다:
- AMT 용액을 분무 건조하여 미세 입자를 형성합니다.
- 수소(H₂) 분위기에서 입자를 금속 텅스텐 분말로 환원합니다.
암모늄 파라텅스테이트(APT)와 비교해 AMT의 용액 기반 공정은 나노급 텅스텐 분말 생산에 더 적합하며 코팅 성능을 향상시킵니다.
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