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Yb-sensitized yttrium-oxide-based laser ceramic 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 loss and error, and achieve the effect of good luminous performance

Active Publication Date: 2017-06-06
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 Yb 0.08 T m 0.04 Ho 0.04 ) 2 o 3 -0.01(Y 0.95 La 0.05 ) 2 o 3 (x=0.08, y=0.08, z=0.05, M=Tm, Ho, N=La)

[0026] Weigh 0.84 mol of yttrium nitrate, 0.08 mol of ytterbium nitrate, 0.04 mol of thulium nitrate, and 0.04 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, and then dry Calcined at 1550 °C for 2 hours to obtain (Y, Yb, 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, Yb, 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 isostatic ...

Embodiment 2

[0027] Embodiment 2: (Y 0.985 Yb 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 ytterbium 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, and then dry Calcined at 1250°C for 8 hours to obtain (Y,Yb,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, Yb, 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 ho...

Embodiment 3

[0029] Embodiment 3: (Y 0.8 Yb 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 ytterbium 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, Yb, 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, Yb, 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 f...

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PUM

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Abstract

The invention discloses Yb-sensitized yttrium-oxide-based laser ceramic. A crystalline grain of the Yb-sensitized yttrium-oxide-based laser ceramic has a core-shell structure, a core layer is (Y,Yb,M)2O3 phase, a shell layer is (Y,N)2O3 phase, the M is rare-earth luminescent ion, and the N is sintering aid. A preparation process comprises the following steps: firstly, mixing a yttrium compound, a ytterbium compound and an M compound, sintering to obtain (Y,Yb,M)2O3 powder, then mixing the yttrium compound with an N compound, sintering to obtain (Y,N)2O3 powder and mixing the two kinds of obtained powder; or directly adding a mixture of the yttrium compound and the N compound into the (Y,Yb,M)2O3 powder to be mixed and sintering; carrying out isostatic press moulding on the obtained mixed powder, sintering the obtained mixed powder in a vacuum mode, cooling and annealing. According to the Yb-sensitized yttrium-oxide-based laser ceramic disclosed by the invention, a (Y,N)2O3 thin layer with excellent sintering character is utilized to cover the (Y,Yb,M)2O3 phase, so that lattice distortion is reduced based on improving the sintering character of the ceramic; thus, excellent laser performance can be obtained.

Description

technical field [0001] The invention relates to a yttrium oxide-based laser ceramic and a preparation method thereof, in particular to a Yb-sensitized yttrium oxide-based laser ceramic and a preparation method thereof, and belongs 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 mate...

Claims

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Application Information

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IPC IPC(8): C04B35/505C04B35/628C04B35/622
CPCC04B35/505C04B35/62222C04B35/62815C04B2235/3224C04B2235/3227C04B2235/443C04B2235/449C04B2235/48C04B2235/94C04B2235/96
Inventor 王焕平田颖杨清华徐时清雷若姗邓德刚
Owner CHINA JILIANG UNIV
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