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Micron-scale titanium-containing hollow glass microsphere and preparation method thereof

A hollow glass microsphere, micron-scale technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems that micron-scale titanium-containing hollow glass microspheres have not been reported, and meet the requirements of non-destructive measurement , high yield and ball forming rate, simple operation

Inactive Publication Date: 2016-07-13
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of micron-sized titanium-containing hollow glass microspheres for laser inertial confinement fusion target pellets by xerogel method has not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment includes the following steps:

[0035] (1) Alkali metal nitrate and urea are selected as foaming agents, and 4.6Li is used 2 O·16.7Na 2 O 4.3K 2 O 3.7TiO 2 ·

[0036] 1.9B 2 o 3 68.8SiO2 2 (wt.%) titanium-containing xerogel blocks as raw materials. The titanium-containing xerogel block was ground in a vibrating sieve with an amplitude of 1.2 mm, a vibration time of 6 min, and a time interval of 0.1 s. Sieve the ground titanium-containing xerogel particles sequentially with sieves with apertures of 225 μm and 200 μm, with an amplitude of 0.9 mm, a time interval of 0.1 s, and a vibration duration of 5 min;

[0037](2) taking the titanium-containing xerogel particles obtained in step (1) with a particle size ranging from 200 μm to 224 μm and drying them at 100° C. for 3 hours;

[0038] (3) Introduce helium-argon mixed gas into the vertical high-temperature xerogel furnace, the total pressure is 1.2atm, in which the partial pressure of helium is 20%...

Embodiment 2

[0043] The steps of embodiment 2 and embodiment 1 are basically the same, the main difference is, select alkali metal nitrate, alkali metal acetate and urea as blowing agent, adopt 4.6Li 2 O·16.9Na 2 O 4.3K 2 O 2.8TiO 2 1.9B 2 o 3 69.5SiO2 2 (wt.%) titanium-containing xerogel blocks as raw materials. During the grinding process, the vibration amplitude of the vibrating screen is 1.0 mm, the time interval is 0.2 s, and the vibration time is 4 min. The apertures of the sieves used in the screening process were 250 μm and 225 μm, the vibration time was 4 minutes, and the amplitude was 0.8 mm; the obtained titanium-containing xerogel particles ranged in size from 200 μm to 224 μm, and were dried at 90°C for 4 hours; The total pressure of the heat-conducting gas during the ball preparation process is 1.1 atm, wherein the partial pressure of helium is 50%, and the temperature in the furnace is 1400°C.

[0044] The prepared micron-sized titanium-containing glass microspheres a...

Embodiment 3

[0046] The steps of embodiment 3 and embodiment 1 are basically the same, and the main difference is that alkali metal acetate is selected as blowing agent, adopting 4.8Li 2 O·17.2Na 2 O 4.4K 2 O 0.9TiO 2 1.9B 2 o 3 70.8 SiO2 2 (wt.%) titanium-containing xerogel blocks as raw materials. During the grinding process, the vibration amplitude of the vibrating screen is 0.9 mm, the time interval is 0.2 s, and the vibration time is 3 min. The apertures of the sieves used in the screening process are 280 μm and 250 μm, the vibration time is 3 min, and the amplitude is 0.8 mm; the obtained titanium-containing xerogel particles range in size from 250 μm to 279 μm, and are dried at 80°C for 4 hours; The total pressure of the heat-conducting gas during the ball preparation process is 1.0 atm, wherein the partial pressure of helium is 90%, and the temperature in the furnace is 1450°C.

[0047] The prepared micron-sized titanium-containing glass microspheres are colorless and transp...

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Abstract

The invention provides a micron-scale titanium-containing hollow glass microsphere and a preparation method thereof. According to the micron-scale titanium-containing hollow glass microsphere and the preparation method thereof, the micron-scale titanium-containing hollow glass microsphere is prepared through a xerogel method. Titanium-containing xerogel particles serve as raw materials and are subjected to heat absorbing, encapsulation, foaming, refining, cooling and other processes in a vertical high-temperature xerogel furnace to form the micron-scale titanium-containing hollow glass microsphere. After being rinsed with special washing liquor, deionized water and absolute ethyl alcohol, the obtained micron-scale titanium-containing hollow glass microsphere is stored in absolute ethyl alcohol. The prepared micron-scale titanium-containing hollow glass microsphere is colorless and transparent, the sphericity and concentricity are high, surface roughness is small, and the requirement of inertial confinement fusion physical experiments can be met. The preparation method is simple in process and high in balling efficiency, and the diameter, the wall thickness, the sphericity, the concentricity, the surface roughness and other performance of the micron-scale titanium-containing hollow glass microsphere can be controlled according to requirements of actual application.

Description

technical field [0001] The invention belongs to the field of laser inertial confinement fusion target material preparation, and in particular relates to a micron-sized titanium-containing hollow glass microsphere and a preparation method thereof. Background technique [0002] Fusion energy is the most ideal energy source recognized by human beings. It is not only clean and safe, but compared with nuclear fission, nuclear fusion energy reserves are abundant and almost inexhaustible. Laser inertial confinement fusion (ICF) is one of the most effective ways to achieve nuclear fusion. It relies on the inertia of the thermonuclear fuel and the remaining mass of the propulsion layer to confine the high-temperature and high-density thermonuclear fuel to achieve thermonuclear fusion, thereby obtaining fusion able method. The design and preparation technology of the target pellet has always been one of the core technologies in ICF research. [0003] In ICF physical experiments, hol...

Claims

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Application Information

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IPC IPC(8): C03C3/089C03C11/00C03B19/10
CPCC03C3/089C03B19/107C03C11/002
Inventor 李芳冯建鸿李婧李波张占文苏琳陈素芬刘一杨李洁初巧妹
Owner LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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