METHOD FOR PRODUCING TRANSPARENT SILICA SINTERED BODY USING AMORPHOUS SILICA NANOPOWDER

The present invention provides a method for producing a silica sintered body having smooth pore removal due to minimized and homogenized pore size, and a heat treatment method capable of producing a silica sintered body having excellent transparency by maximizing a densification process by means of...

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Bibliographische Detailangaben
Hauptverfasser:	OH, Bok Hyun, AHN, Yoo Kyoung, LEE, Sang Jin, LIM, Hyung Sup
Format:	Patent
Sprache:	eng ; fre ; kor
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	The present invention provides a method for producing a silica sintered body having smooth pore removal due to minimized and homogenized pore size, and a heat treatment method capable of producing a silica sintered body having excellent transparency by maximizing a densification process by means of viscous flow in the silica sintered body during sintering. Therefore, by using the producing method of the present invention, there is an advantage in that transparent quartz glass having improved light transmittance can be manufactured using amorphous silica nanopowder. La présente invention concerne un procédé pour la production d'un corps fritté de silice dont l'élimination des pores se fait en douceur en raison de la taille des pores réduite au minimum et homogénéisée, et un procédé de traitement thermique permettant de produire un corps fritté de silice ayant une excellente transparence par l'augmentation au maximum d'un processus de densification au moyen d'un écoulement visqueux dans le corps fritté de silice pendant le frittage. Par conséquent, à l'aide du procédé de production selon la présente invention, il y a un avantage consistant en ce que du verre de quartz transparent ayant une transmittance de la lumière améliorée peut être fabriqué à l'aide de nanopoudre de silice amorphe. 본 발명은 기공 크기가 최소화되고 균질화되므로 기공 제거가 원활한 실리카 성형체의 제조방법 및 소결시 실리카 성형체내 점성유동에 의한 치밀화 과정이 극대화되어 투명도가 우수한 실리카 소결체를 제조할 수 있는 열처리 방법을 제공한다. 따라서 본 발명의 제조방법을 이용하면 비정질 실리카 나노분말을 이용하여 투광성이 향상된 투명한 석영유리를 제조할 수 있는 장점이 있다.