公开(公告)号：US3799881A

公开(公告)日：1974-03-26

申请号：US27024772

申请日：1972-07-10

Applicant: RCA CORP

Inventor： SHIDLOVSKY I

IPC: C30B29/34 ,  H01J31/10

CPC classification number: H01J31/10 ,  C01B33/2892 ,  Y10S423/32

Abstract: A CATHODOCHROMIC CATHODE RAY TUBE COMPRISES AN IMAGE SCREEN EMPLOYING IMPROVED CATHODOCHROMIC SODALITE. THE CATHODOCHROMIC SODALITE IS PREPARED BY FORMING AN AMORPHOUS MASS FROM A MIXTURE OF A SODIUM HALIDE, SODIUM HYDROXIDE, ALUMINUM OXIDE AND SILICON DIOXIDE. THE MASS IS CALCINED AT AN ELEVATED TEMPERATURE SO AS TO DRIVE OUT HYDRATED WATER FROM THE MASS. THE CALCINED MASS IS CRUSHED TO A POWDER AND THEN SINTERED SO AS TO FORM CRYSTALLINE SODALITE. THE TEMPERATURE IS RAISED SO AS TO CAUSE SINTERING TEMPERATURE TO 100* C. OR MORE SO AS TO CAUSE A PORTION OF THE SODIUM HALIDE IN THE SODALITE TO BE EVAPORATED THEREFROM THEREBY RESULTING IN A NON-STOICHIOMETRIC CRYSTAL HAVING VACANCIES IN THE POSITIONS WHICH SODIUM AND HALIDE IONS NORMALLY OCCUPY IN THE CRYSTAL.

公开(公告)号：US3773540A

公开(公告)日：1973-11-20

申请号：US3773540D

申请日：1971-05-27

Applicant: RCA CORP

Inventor： SHIDLOVSKY I

IPC: C09K9/00 ,  F02C7/24 ,  H01J29/14 ,  H01J31/18 ,  G03C5/02 ,  H01J29/28

CPC classification number: H01J29/14 ,  C01B33/2892 ,  C09K9/00 ,  Y10T428/24413 ,  Y10T428/258

Abstract: An image screen of a dark trace cathode ray tube comprises a substrate having a novel sodalite cathodochromic layer thereon. The novel sodalite is characterized in that it is spherically shaped, porous and contains a sodium halide deficiency of 10 - 20 weight percent. The novel sodalite is prepared by a hydrothermal growth technique employing excess sodium hydroxide and sodium halide and wherein the reaction vessel is heated to a uniform temperature and rapidly cooled to prevent growth of dedcahedral crystals.

Abstract translation: 暗迹阴极射线管的图像屏幕包括其上具有新的方钠石阴极色层的衬底。 新型方钠石的特征在于它是球形的，多孔的，并且含有10-20重量％的卤化钠不足。 通过使用过量的氢氧化钠和卤化钠的水热生长技术制备新型方钠石，其中将反应容器加热至均匀的温度并快速冷却以防止去结晶晶体的生长。