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A kind of TM-sensitized yttrium oxide-based laser ceramics and preparation method thereof

A technology of laser ceramics and yttrium oxide, which is applied in the field of material science, can solve problems such as errors and losses, and achieve good sintering activity and good luminous performance.

Active Publication Date: 2020-03-24
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the strong directionality of the laser, any small refraction will cause light refraction and cause errors and losses

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: (Y 0.84 T m 0.08 Ho 0.08 ) 2 o 3 -0.01(Y 0.95 La 0.05 ) 2 o 3 (x=0.08, y=0.08, z=0.05, M=Ho, N=La)

[0026] Weigh 0.84 mol of yttrium nitrate, 0.08 mol of thulium nitrate, and 0.08 mol of holmium nitrate into deionized water and mix evenly, then use zirconia balls as the grinding medium, ball mill and mix for 4 hours, dry and then calcinate at 1550 °C for 2 hours , get (Y,Tm,Ho) 2 o 3 phase powder. Weigh 0.0095 mol of yttrium nitrate and 0.0005 mol of lanthanum nitrate into deionized water and mix evenly, then add the above synthesized (Y, Tm, Ho) 2 o 3 phase powder, ball milled for 4 hours, and then the mixture was spray-dried to remove deionized water. Put the powder obtained after spray drying into a mold, shape it under a pressure of 10 MPa, then heat it up to 1050 °C for 4 hours, put it into an isostatic press after cooling, and perform isostatic pressing at 300 MPa; The product after isostatic pressing was placed in a vacuum furnace, ke...

Embodiment 2

[0027] Embodiment 2: (Y 0.985 T m 0.01 Dy 0.005 ) 2 o 3 -0.2(Y 0.88 La 0.09 Zr 0.03 ) 2 o 3 (x=0.01, y=0.005, z=0.12, M=Dy, N=La, Zr)

[0028] Weigh 0.45 mol of yttrium oxide, 0.085 mol of yttrium nitrate, 0.01 mol of thulium nitrate, and 0.005 mol of dysprosium acetate into deionized water and mix evenly, then use zirconia balls as the grinding medium, ball mill and mix for 24 hours, dry and then Calcined at 1250°C for 8 hours to obtain (Y, Tm, Dy) 2 o 3 phase powder. Weigh 0.176 mol of yttrium nitrate, 0.018 mol of lanthanum nitrate, and 0.006 mol of zirconium nitrate into deionized water and mix evenly, then use zirconia balls as the grinding medium, ball mill and mix for 24 hours, dry and then calcinate at 1050 °C for 1 hour , get (Y,La,Zr) 2 o 3 phase powder. The above prepared (Y, Tm, Dy) 2 o 3 Phase powder and (Y,La,Zr) 2 o 3 Mix the phase powders, put them into a ball mill jar, use zirconia balls as the grinding medium, and ball mill and mix for 24 h...

Embodiment 3

[0029] Embodiment 3: (Y 0.8 T m 0.1 Er 0.1 ) 2 o 3 -0.1(Y 0.8 La 0.1 Ti 0.05 Al 0.05 ) 2 o 3 (x=0.1, y=0.1, z=0.2, M=Er, N=La,Ti,Al)

[0030] Weigh 0.25 mol of yttrium oxide, 0.15 mol of yttrium nitrate, 0.15 mol of yttrium acetate, 0.1 mol of thulium nitrate, and 0.1 mol of erbium acetate into deionized water and mix them evenly, then use zirconia balls as the grinding medium, and ball mill and mix 12 hours, dried and then calcined at 1500 °C for 6 hours to obtain (Y, Tm, Er) 2 o 3 phase powder. Weigh 0.04 mol of yttrium nitrate, 0.04 mol of yttrium acetate, 0.01 mol of lanthanum acetate, 0.005 mol of tetrabutyl titanate, and 0.005 mol of aluminum nitrate into deionized water and mix well, then add the above synthesized (Y, Tm,Er) 2 o 3 phase powder, ball milled for 12 hours, and then the mixture was spray-dried to remove deionized water. Put the powder obtained after spray drying into a mold, shape it under a pressure of 20 MPa, then heat it up to 1250 °C for...

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PUM

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Abstract

The invention discloses Tm sensitized yttria-based laser ceramic. The grain of the Tm sensitized yttria-based laser ceramic has a core-shell structure, the core layer is (Y, Tm, M) 203 phase, and the shell layer is (Y, N) 203 phase, wherein M is rare earth luminescent ion, and N is a sintering additive. The preparation process comprises the following steps: firstly mixing the compound of yttrium and the compound of thulium with the compound of M, calcining to obtain (Y, Tm, M) 203 powder, and mixing the compound of yttrium with the compound of N, calcining to obtain (Y, N) 203 powder, and mixing two types of the powder; or mixing the compound of yttrium and the compound of N, and directly adding to the (Y, Tm, M) 203 powder, mixing, and calcining; and isostatic-pressing and forming the obtained mixed powder, vacuum-sintering, and annealing after cooling. The preparation method is capable of using the (Y, N) 203 thin layer with the good sintering character to coat the (Y, Tm, M) 203 phase, and reducing the lattice distortion on the basis of improving the sintering character of the ceramic so as to obtain the good laser activity.

Description

technical field [0001] The invention relates to a yttrium oxide-based laser ceramic and a preparation method thereof, in particular to a Tm-sensitized yttrium oxide-based laser ceramic and a preparation method thereof, belonging to the field of material science and technology. Background technique [0002] Yttrium oxide is a cubic crystal with excellent light transmission properties, and has the advantages of high melting point, good chemical and photochemical stability, high thermal conductivity, and wide range of optical transparency (0.23-8.0 μm), especially in the infrared region, with a theoretical transmittance of more than 80%; its phonon energy is low, and it is easy to realize the doping modification of rare earth ions, which can suppress the non-radiative transition to a certain extent, increase the probability of radiative transition, and thereby improve the quantum efficiency of luminescence. As an important matrix material for solid-state laser dielectric materi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/505
CPCC04B35/505C04B2235/3224C04B2235/9653
Inventor 王焕平杨清华田颖徐时清雷若姗赵士龙
Owner CHINA JILIANG UNIV