Method for preparing lanthanum gadolinium zirconate transparent ceramic by AM gel casting process
A technology of gel injection molding and lanthanum-gadolinium zirconate, which is applied in the field of optically functional transparent ceramic materials, can solve problems such as no literature reports, and achieve the effects of small grain size, good dispersion, and large specific surface area
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0045] In this embodiment, a gel injection molding process using AM system is used to prepare lanthanum gadolinium zirconate transparent ceramics (La 0.4 Gd 1.6 Zr 2 o 7 ) method is as follows:
[0046] (1) Preparation of precursor powder: Weigh lanthanum oxide, gadolinium oxide, and zirconium oxide (purity >99.9%) according to the stoichiometric molar ratio of 1:4:10, and add them into a nylon ball mill tank with alcohol as a solvent Ball milling 20h obtains uniform oxide mixed powder, the mass ratio (being ball material ratio) of the ball medium of ball mill and oxide mixed powder is 27:1, and the rotating speed of ball mill is 250r / min; The oxide mixed powder is separated, and Dry at 70°C for 20h, grind and sieve the dried powder, then place the refined powder in a muffle furnace and calcinate at 1400°C for 3h to obtain lanthanum-gadolinium zirconate pure phase powder with a heating rate of 5 ℃ / min, and then lowered to room temperature, the cooling rate is 5 ℃ / min, the ...
Embodiment 2
[0054] A preparation of lanthanum gadolinium zirconate transparent ceramics (LaGdZr 2 o 7 ) method is as follows:
[0055] (1) Preparation of precursor powder: Weigh lanthanum oxide, gadolinium oxide, and zirconium oxide (purity>99.9%) according to the stoichiometric ratio of molar ratio 4:1:1, and add them into a nylon ball mill tank with alcohol as a solvent Ball milling for 24 hours to obtain a uniform oxide mixed powder, the mass ratio of the ball medium of the ball mill to the oxide mixed powder (i.e. the ball-to-material ratio) is 27:1, and the rotational speed of the ball mill is 200r / min; the oxide mixed powder slurry is separated , and dried at 80°C for 24 hours, the dried powder was ground and sieved, and then the refined powder was placed in a muffle furnace and calcined at 1100°C for 4 hours to obtain a pure phase powder of lanthanum gadolinium zirconate, and the temperature was raised The speed is 8°C / min, the cooling rate is 10°C / min, the pure phase powder of l...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Diameter | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
| Density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More