Yttrium Introduction Yttrium can be made into special glass and ceramics, and used as a catalyst. Mainly used for manufacturing microwave magnetic materials and important military materials (single crystal; composite oxides such as yttrium iron garnet and yttrium aluminum garnet), also used as optical glass, ceramic material additives, and high-brightness phosphors for large-screen TVs And other picture tube coatings. It is also used to manufacture film capacitors and special refractory materials, as well as magnetic bubble materials for high-pressure mercury lamps, lasers, and storage components.
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Items |
Grade |
||||
|
Y2O3/REO % Min |
99.999 |
99.99 |
99.9 |
99 |
|
|
REO % Min |
99 |
99 |
99 |
98.5 |
|
|
REO % RE impurities Max |
0.001 |
0.01 |
0.1 |
1 |
|
|
|
La2O3 |
0.0005 |
0.001 |
0.001 |
0.005 |
|
CeO2 |
0.0003 |
0.001 |
0.001 |
0.005 |
|
|
Pr6O11 |
0.0003 |
0.005 |
0.005 |
0.02 |
|
|
Sm2O3 |
0.0005 |
0.001 |
0.001 |
0.005 |
|
|
Non-RE impurities% Max |
Fe2O3 |
0.0005 |
0.001 |
0.002 |
0.005 |
|
CaO |
0.0005 |
0.001 |
0.002 |
0.005 |
|
|
CuO |
0.0005 |
0.0006 |
0.001 |
|
|
|
NiO |
0.0005 |
0.001 |
0.001 |
|
|
|
PbO |
0.0005 |
0.001 |
0.001 |
|
|
|
SiO |
0.0025 |
0.005 |
0.005 |
0.01 |
|
|
1000℃1h % Max |
1 |
1 |
1 |
1.5 |
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