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A platform for research: civil engineering, architecture and urbanism
YITTRIUM GRANULAR POWDER FOR THERMAL SPRAY AND THERMAL SPRAY COATING PRODUCED USING THE SAME
The present invention relates to yttrium-based granular powder for thermal spray, and more particularly, the yttrium-based granular powder for thermal spray which is a mixture of at least one yttrium compound powder selected from Y_2O_3, YOF, YF_3, Y_4Al_2O_9, Y_3Al_5O_12 and YAlO_3 and silica (SiO_2) powder and contains less than 10 wt% of an intermediate phase Y-Si-O. Thermal spray coating produced using the yttrium-based granular powder for thermal spray has a low porosity and forms a very dense film to have excellent plasma resistance.
본 발명은 용사용 이트륨계 과립 분말에 관한 것으로, 보다 상세하게는 Y2O3, YOF, YF3, Y4Al2O9, Y3Al5O12 및 YAlO3 중에서 선택되는 어느 하나 이상의 이트륨 화합물 분말과 실리카(SiO2) 분말의 혼합물이며, Y-Si-O 중간상을 10중량% 미만으로 포함하며, 이를 이용하여 제조된 용사 피막은 기공률이 낮고, 매우 치밀한 박막을 형성하여 내플라즈마성이 우수하다.
YITTRIUM GRANULAR POWDER FOR THERMAL SPRAY AND THERMAL SPRAY COATING PRODUCED USING THE SAME
The present invention relates to yttrium-based granular powder for thermal spray, and more particularly, the yttrium-based granular powder for thermal spray which is a mixture of at least one yttrium compound powder selected from Y_2O_3, YOF, YF_3, Y_4Al_2O_9, Y_3Al_5O_12 and YAlO_3 and silica (SiO_2) powder and contains less than 10 wt% of an intermediate phase Y-Si-O. Thermal spray coating produced using the yttrium-based granular powder for thermal spray has a low porosity and forms a very dense film to have excellent plasma resistance.
본 발명은 용사용 이트륨계 과립 분말에 관한 것으로, 보다 상세하게는 Y2O3, YOF, YF3, Y4Al2O9, Y3Al5O12 및 YAlO3 중에서 선택되는 어느 하나 이상의 이트륨 화합물 분말과 실리카(SiO2) 분말의 혼합물이며, Y-Si-O 중간상을 10중량% 미만으로 포함하며, 이를 이용하여 제조된 용사 피막은 기공률이 낮고, 매우 치밀한 박막을 형성하여 내플라즈마성이 우수하다.
YITTRIUM GRANULAR POWDER FOR THERMAL SPRAY AND THERMAL SPRAY COATING PRODUCED USING THE SAME
용사용 이트륨계 과립 분말 및 이를 이용한 용사 피막
KIM DAE SUNG (author) / BANG SEONG SIK (author) / JEONG JAE IM (author) / JEONG DONG HUN (author)
2021-06-18
Patent
Electronic Resource
Korean
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