KR20250099916A - 3D 프린팅을 이용한 SiC 부품 제조 방법 및 이에 의해 제조된 SiC 부품 - Google Patents
3D 프린팅을 이용한 SiC 부품 제조 방법 및 이에 의해 제조된 SiC 부품 Download PDFInfo
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Abstract
본 발명에 따른 3D 프린팅을 이용한 SiC 부품 제조 방법은, 3D 프린팅용 원료를 제조하는 제1 단계; 상기 3D 프린팅용 원료를 이용하여 3D 프린팅 성형물을 제작하는 제2 단계; 및 상기 3D 프린팅 성형물을 열처리하는 제3 단계를 포함한다.
상기 제1 단계는, 폴리카보실란(PCS)을 포함하는 주원료와 세라믹 재질의 필러를 5:5 ~ 9:1의 부피비로 배합하는 단계를 포함한다.
상기 제3 단계는, 180℃에서 500℃까지의 구간(이하, '제1 온도구간'이라 함)에서 20℃/min 이상의 승온속도(이하, '제1 승온속도'라 함)로 온도를 증가시키며 열처리하는 제3-1 단계; 및 500℃ 초과에서 "1200 ~ 1600℃"까지의 구간(이하, '제2 온도구간'이라 함)에서 상기 제1 승온속도보다 낮은 승온속도(이하, '제2 승온속도'라 함)로 온도를 증가시키며 열처리하는 제3-2 단계;를 포함한다.
Description
도 2는 비교예 6 내지 비교예 8에 따라 제조된 SiC 결과물을 보여주는 사진.
도 3은 실시예 1 및 실시예 2에 따라 제조된 SiC 결과물을 보여주는 사진.
도 4는 본 발명의 제조 방법에 따라 제조된 SiC 부품의 X선 회절 분석 결과.
Claims (17)
- 3D 프린팅용 원료를 제조하는 제1 단계; 상기 3D 프린팅용 원료를 이용하여 3D 프린팅 성형물을 제작하는 제2 단계; 및 상기 3D 프린팅 성형물을 열처리하는 제3 단계를 포함하고,
상기 제1 단계는,
폴리카보실란(PCS)을 포함하는 주원료와 세라믹 재질의 필러를 5:5 ~ 9:1의 부피비로 배합하는 단계를 포함하고,
상기 제3 단계는,
180℃에서 500℃까지의 구간(이하, '제1 온도구간'이라 함)에서 20℃/min 이상의 승온속도(이하, '제1 승온속도'라 함)로 온도를 증가시키며 열처리하는 제3-1 단계; 및
500℃ 초과의 구간(이하, '제2 온도구간'이라 함)에서 상기 제1 승온속도보다 낮은 승온속도(이하, '제2 승온속도'라 함)로 온도를 증가시키며 열처리하는 제3-2 단계;를 포함하는 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 제1 승온속도는 30℃/min 이상인 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 제2 승온속도는 7℃/min 이하인 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 제3 단계가 완료된 상기 3D 프린팅 성형물을 냉각하는 제4 단계를 더 포함하고,
상기 제4 단계는,
상기 제2 온도구간에서 상기 제1 온도구간까지 5℃/min 이하의 감온속도로 온도를 감소시키는 단계를 포함하는 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 제1 단계 내지 상기 제3 단계를 통해 제조된 SiC 부품에 실리콘(Si)을 침윤시키는 단계;를 더 포함하는 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제5 항에 있어서,
상기 실리콘(Si)을 침윤시키는 단계는,
실리콘 분말을 용융하여 침윤시키거나, 상기 SiC 부품에 실리콘 박막을 코팅한 후 모세관 현상을 이용하여 침윤시키는 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 제1 온도구간은 190℃에서 490℃까지의 구간인 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 제2 온도구간에서, 상기 제2 승온에 의해 도달하는 최고 온도는 1200 ~ 1600℃ 범위 내에 있는 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 필러는 SiC 분말을 포함하는 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항에 있어서,
상기 주원료는 광개시제 및 가교제를 더 포함하는 것을 특징으로 하는 3D 프린팅을 이용한 SiC 부품 제조 방법.
- 제1 항 내지 제10 항 중 어느 한 항의 SiC 부품 제조 방법에 따라 제조된 SiC 부품으로서,
X선 회절에서, (111)면, (200)면, (220)면, 및 (311)면의 결정방향을 포함하고,
다음의 수학식 1에 따라 계산되는 X선 회절 피크의 강도비(I)가 1.0 이하인 것을 특징으로 하는 3D 프린팅을 이용하여 제조된 SiC 부품.
수학식 1
강도비(I) = {(200)면 피크 강도 + (220)면 피크 강도 + (311)면 피크 강도}/(111)면 피크 강도
- 제11 항에 있어서,
상기 SiC 부품은,
(220)면이 차지하는 비율이, (200)면이 차지하는 비율 및 (311)면이 차지하는 비율 각각보다 더 큰 것을 특징으로 하는 3D 프린팅을 이용하여 제조된 SiC 부품.
- 제11 항에 있어서,
상기 SiC 부품은,
(220)면이 차지하는 비율이, (200)면이 차지하는 비율과 (311)면이 차지하는 비율의 합계보다 더 큰 것을 특징으로 하는 3D 프린팅을 이용하여 제조된 SiC 부품.
- 제11 항에 있어서,
상기 SiC 부품은,
β-SiC 와 α-SiC 의 결정구조가 혼합되어 있는 것을 특징으로 하는 3D 프린팅을 이용하여 제조된 SiC 부품.
- 제11 항에 있어서,
상기 SiC 부품은,
(104)면의 결정방향을 더 포함하는 것을 특징으로 하는 3D 프린팅을 이용하여 제조된 SiC 부품.
- 제15 항에 있어서,
상기 SiC 부품은,
β-SiC 와 α-SiC 의 결정구조가 혼합되어 있는 것이고,
상기 (104)면은 상기α-SiC에 존재하는 것을 특징으로 하는 3D 프린팅을 이용하여 제조된 SiC 부품.
- 제14 항에 있어서,
상기 β-SiC 가 차지하는 비율이 상기 α-SiC 이 차지하는 비율보다 더 큰 것을 특징으로 하는 3D 프린팅을 이용하여 제조된 SiC 부품.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101551255B1 (ko) | 2013-12-30 | 2015-09-09 | 전자부품연구원 | 3d 프린팅용 저점도 세라믹 슬러리 조성물 |
| KR102076864B1 (ko) | 2018-03-22 | 2020-03-17 | (주) 데크카본 | 전기비저항이 조절된 SiC 섬유의 제조방법 |
| KR102348935B1 (ko) | 2019-09-27 | 2022-01-11 | 한국세라믹기술원 | 비정질 SiC 블록 제조방법 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101551255B1 (ko) | 2013-12-30 | 2015-09-09 | 전자부품연구원 | 3d 프린팅용 저점도 세라믹 슬러리 조성물 |
| KR102076864B1 (ko) | 2018-03-22 | 2020-03-17 | (주) 데크카본 | 전기비저항이 조절된 SiC 섬유의 제조방법 |
| KR102348935B1 (ko) | 2019-09-27 | 2022-01-11 | 한국세라믹기술원 | 비정질 SiC 블록 제조방법 |
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