안녕하십니까.

오는 수요일(6월 12일) 오후 4:00에 아래와 같이 2024년 상반기 정규 콜로키움이 진행될 예정입니다.

발표 후에는 연사와의 대화시간(5:00-5:40) 및 저녁 식사가 예정되어 있으니 많은 참여 부탁드립니다.

발표자: 이세훈 박사 (한국재료연구원)

호스트: 한정열

장소: 장영실홀 331-2 및 원격 연결

일시: 6월 12일 (수) 오후 4:00

접속주소: https://zoom.us/j/92444602963?pwd=VXJzWE1zd3VkYmZ1SjRMeXRFQy9kQT09

교육학점: 천문연 소속 현장참석자의 경우 필수 0.5 학점 부여

제목: Si-based Precursor Derived Ceramics for Aerospace Application

초록: 

SiCfiller/SiC ceramic composites were prepared using a SiC powder and a liquid polycarbosiane (PCS) ceramic precursor. Ultra-fine SiC powder (d50: 170nm), prepared by mechanical alloying process, was used to prepare aqueous SiC slurries with the solid loading of 66 - 70 vol%. By the optimization of dispersion condition and the oxidation treatment of the SiC powder, SiC slurry up to 70 vol% solid loading was successfully prepared. The maximum green density of SiC compact after drying the slurry was 78%. Precursor-impregnation & pyrolysis process (PIP) was performed using SMP-10 liquid PCS precursor. The weight of the SiC composites increased almost linearly up to 4 PIP cycles and the mass gain became less efficient afterwards. The 4-point flexural strength of the SiC composites were 204 and 265MPa at 25 and 2,000℃, respectively under argon atmosphere. The result clearly indicates the excvellent thermal stability of the SiC cpmposites fabricated using the PCS precursor.

진행언어: 한국어

슬라이드언어: 한국어

원격 접속 방법 :

A. 웹 브라우저: Chrome을 추천하며 아래 주소를 실행시 Zoom 구동을 위한 프로그램이 설치될 수 있음

B. 접속 주소: https://zoom.us/j/92444602963?pwd=VXJzWE1zd3VkYmZ1SjRMeXRFQy9kQT09

C. 유의사항: 접속 후 "마이크는 뮤트로 설정" - 기본설정은 뮤트로 되어있음 > 질의 응답시간에는 마이크를 사용해서 질문 가능함

2024년 상반기 천문연구원 콜로키움 일정

https://www.kasi.re.kr/kor/publication/post/notice/29938

(위 일정은 연사분의 상황에 따라서 변경될 수 있습니다.)

천문연 콜로키움 위원회 (김종수, 선광일, 이창원, 문홍규, 노혜림, 한정열)

운영위원회 (김진호, 송영범, 오재석, 윤용민, 조영수, 홍경수) 

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Dear all,

The KASI's regular colloquium is scheduled at Jun. 12, as shown below.

A conversation session with speakers and dinner are scheduled after the colloquium.

Speaker: Dr. Lee Sea Hoon (Korea Institute of Materials Science)

Host: 한정열

Place: Jang Yeong-sil Hall 331-2 & Online

Time: June 12 (Wed) 4:00 pm 

Access: https://zoom.us/j/92444602963?pwd=VXJzWE1zd3VkYmZ1SjRMeXRFQy9kQT09

KASI Educational credits: 0.5 educational credits are awarded to off-line attendees.

Title: Si-based Precursor Derived Ceramics for Aerospace Application

Abstract: 

SiCfiller/SiC ceramic composites were prepared using a SiC powder and a liquid polycarbosiane (PCS) ceramic precursor. Ultra-fine SiC powder (d50: 170nm), prepared by mechanical alloying process, was used to prepare aqueous SiC slurries with the solid loading of 66 - 70 vol%. By the optimization of dispersion condition and the oxidation treatment of the SiC powder, SiC slurry up to 70 vol% solid loading was successfully prepared. The maximum green density of SiC compact after drying the slurry was 78%. Precursor-impregnation & pyrolysis process (PIP) was performed using SMP-10 liquid PCS precursor. The weight of the SiC composites increased almost linearly up to 4 PIP cycles and the mass gain became less efficient afterwards. The 4-point flexural strength of the SiC composites were 204 and 265MPa at 25 and 2,000℃, respectively under argon atmosphere. The result clearly indicates the excvellent thermal stability of the SiC cpmposites fabricated using the PCS precursor.

Language: Korean

Slide Language: Korean

Remote access procedure:

A. Web browser: Chrome - When executing the address below, a program for additional zoom operation can be installed.

B. Access: Go to  https://zoom.us/j/92444602963?pwd=VXJzWE1zd3VkYmZ1SjRMeXRFQy9kQT09

C. Notice: After join, Please mute your microphone. - The default setting is microphone mute. > After the presentation, during the Q&A session, you can use the microphone to ask questions.

2024A KASI Colloquium Schedule

https://www.kasi.re.kr/kor/publication/post/notice/29938

(This schedule may vary depending on the speakers' schedule.)

KASI Colloquium committee (Jongsoo Kim, Kwang-Il Seon, Chang Won Lee, Hong-Kyu Moon, Hyerim Noh, Jeong-Yeol Han)

Working committee (Jinho Kim, Youngbum Song, Jae Sok Oh, Yongmin Yoon, Youngsoo Jo, Kyeongsoo Hong)