Abstract:
실시 예에 따른 도가니는 바닥부, 상기 바닥부 상에 위치하는 측부 및 상기 측부의 내면과 상기 바닥부의 내면에 서로 이격하여 배치되는 복수의 결정화 촉진제들을 포함하며, 상기 복수의 결정화 촉진제들 중 인접하는 2개의 결정화 촉진제들 간의 이격 거리는 2㎜ ~ 6㎜이다.
Abstract:
A microfluidic system including a piezoelectric substrate (1), a wave generation means (5) for generating a wave in the piezoelectric substrate, and a rigid secondary substrate (11) coupled to said piezoelectric substrate (1) and providing a working surface (12) for the system, the secondary substrate (11) being formed of a relatively chemically inert material, and the coupling of the piezoelectric substrate (1) with the secondary substrate (12) being provided by a fluid coupling layer (13) located between the piezoelectric substrate (1) and the secondary substrate (12) overlaying the piezoelectric substrate (1). In one application, the system may be used to synthesize zeolite nanocrystals via atomization of a liquid droplet (15).
Abstract:
The inventions relate to the scintillation substances and they may be utilized in nuclear physics, medecine and oil industry for recording and measurements of X-ray, gamma -ray and alpha- ray, nondestructive testing of solid states structure, three-dimensional positron-emission tomography and X-ray computer tomography and fluorography. The scintillating substances based on a silicate comprising a lutetium (Lu) and cerium (Ce) characterised in that the compositions of substances are represented by the chemical formulae Ce x Lu 2+2y-x Si 1-y O 5+y Ce x Li q+p Lu 2-p+2y-x-z A z Si 1-y O 5+y-p Ce x Li q+p Lu 9,33-x-p-z 0,67 A z Si 6 O 26-p where A is at least one element selected from the group consisting of Gd, Sc, Y, La, Eu, Tb, x ia a value between 1x10 -4 f. units and 0.02 f. units., y is a value between 0.024 f. units and 0.09 f. units, z is a value does not exceeding 0.05 f. units, q is a value does not exceeding 0.2 f. units, p is a value does not exceeding 0.05 f. units, Ce x Li 1+q+p Lu 9-x-p-z A z Si 6 O 26-p z is a value does not exceeding 8.9 f. units. The achievable technical result is the scintillating substance having a high density, a high light yield, a low afterglow, and a low percentage loss during fabrication of scintillating elements for three-dimensional tomograph (PET).
Abstract:
본 발명은 건축자재로 사용되는 점토벽돌 중 생산과정에서 불량으로 폐기되는 점토벽돌이나 시공 후 오래되어 폐기되는 점토벽돌을 이용하여 토양 및 수질 정화제로 이용 가능한 제올라이트 타입의 건축폐기물을 이용한 고순도 합성 제올라이트 대량생산 방법에 관한 것으로 본 발명은 기존 합성제올라이트 제조방법에서 필수적으로 요구되는 CaO 용출제거 공정을 필요로 하지 않아 고순도로 대량생산할 수 있은 효과를 갖는다.
Abstract:
There is herein described a method of making a single crystal wavelength conversion element from a polycrystalline wavelength conversion element, a single crystal wavelength conversion element, and a light source containing same. By making the single crystal wavelength conversion element from a polycrystalline wavelength conversion element, the method provides greater flexibility in creating single crystal wavelength conversion elements as compared to melt grown methods for forming single crystals. Advantages may include higher activator contents, forming more complex shapes without machining, providing a wider range of possible activator gradients and higher growth rates at lower temperatures.
Abstract:
本发明公开了一种硅酸铝镓钽钙压电晶体及其制备方法。所述晶体的化学通式为Ca 3 TaAl (3-x) Ga x Si 2 O 14 ,其中,0.3<x<2.5;所述晶体具有与硅酸镓镧晶体相同的晶体结构,属空间群P321、点群32。本发明采用提拉生长法制备所述晶体。本发明所提供的硅酸铝镓钽钙压电晶体兼具优异的压电性能、良好的结晶性能、成本较低廉、易于生长大尺寸晶体等优点,有利于晶体的广泛实用化,有望获得大规模工业化应用。
Abstract:
The present invention pertains to the chemical techniques used in the field of oxide-based composite materials for growing piezo-electric monocrystals that essentially consist of lanthanum and gallium silicate La3Ga5SiO14. The lanthanum and gallium silicate crystals are grown according to the Chokhralskiy method on a seed crystal having an orientation of , , and . The melt mixture is obtained in two steps according to a method of high-temperature self-propagating synthesis.