Overview
Oxides and rare earth compounds
Rare Material Division offers a wide variety of rare earth oxides and rare earth compounds, including yttrium oxide, which was first mass-produced and refined in Japan.
We propose the best products to meet the various requirements of our customers, including electronic materials, medical, and semiconductor applications.
Examples of Use
・Electronic materials
・Healthcare
・Semiconductors
・Batteries
・ Catalysts
・Phosphor
Features (Product Lineup)
Properties of Y₂O₃
*We carry other elements as well, but please note that we may not be able to accommodate requests for certain products. Please contact us for details.
① Standard product
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Y₂O₃
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La₂O₃
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CeO₂
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Pr₆O₁₁
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Nd₂O₃
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Sm₂O₃
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Eu₂O₃
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Gd₂O₃
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Tb₄O₇
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Dy₂O₃
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H₂O₃
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Er₂O₃
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Tm₂O₃
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Yb₂O₃
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Lu₂O₃
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Sc₂O₃
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Features and Applications
Rare Material Division offers a wide variety of rare earth oxides and rare earth compounds, including yttrium oxide, which was first mass-produced and refined in Japan.
We propose the best products to meet the various requirements of our customers, including electronic materials, medical, and semiconductor applications.
Physical properties
Particle size distribution D50%: 3–4 µm
Specific surface area (BET method): 2–4 m²/g
Loss on Ignition (L.O.I.): < 0.5%
Details
Rare Material Division handles a variety of rare earth oxides including yttrium oxide. Y₂O₃ are used as a base material for phosphors, as well as Eu₂O₃ and Tb₄O₇ as activators, Sm₂O₃, Nd₂O₃, and Dy₂O₃ are used as magnetic materials, and Gd₂O₃ is used in nuclear power generation. High-purity products containing fewer transition elements such as iron are also available.
② Fine-particle products
Features and Applications
An oxide suitable for adding to ceramics. The product is highly reactive as it consists of small primary particles and thus has high-specific surface area.
Physical properties
Particle size distribution (D50%): 0.5–2 µm
Primary particle size: tens to hundreds of nanometers
Specific surface area (BET method): High BET 20–25 m²/g, Low BET 10–13 m²/g
Loss on Ignition (L.O.I.): < 2.0%
Details
Rare Material Division manufactures high-purity, fine-grained products with a large specific surface area. These products are suitable for use in ceramics, and are highly reactive as they consist of small primary particles, thus having a high-specific surface area.
Our standard lineup of yttrium oxide includes two types: one with a specific surface area of 10-13㎡/g and the other with a specific surface area of 20-25㎡/g.
Other oxides are also available in purities (TREO) ranging from 99.9 to 99.999%, as well as fine particles of 1 µm or less, so please feel free to contact us for more information.
③ Granules (spherical)
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Yttrium oxide granules
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Yttrium Aluminate Granules
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Yttrium Hexafluoride Granules
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Features and Applications
Spherical granulated powder with good flowability suitable for CIP molding/sintered bodies and thermal spraying. It can also be used as a fine-grained oxide easy to be handled because it has fine primary particle size.
Physical properties
Particle size: 30–60 µm
Primary particle size: ~submicron
Details
Rare earth oxide granules are mainly used for CIP molding/sintered bodies and thermal spraying because of their high flowability and formability. In the case of yttria-based granule products in particular, we have various product grades such as yttrium oxide granules (Y₂O₃), yttrium aluminate granules (Y-Al-O), and yttrium oxyfluoride granules (Y-O-F) that meet customers' objectives.
Major applications include thermal spray materials and sintered materials for semiconductor manufacturing equipment that requires plasma resistance.
Examples of mixed-oxide compounds
We can offer a variety of composite oxides to suit specific applications and meet the requirements of our customers. For example, composite oxides mixed with Si-based materials are used in the development of heat-resistant materials. We can also handle co-precipitates of rare earths, so please feel free to contact us for more information.
High-purity lanthanum oxide (La₂O₃)
This product is a high-purity lanthanum oxide in which impurity elements that show optical absorption are reduced to the utmost limit.In particular, Ce and Fe are less than one-tenth of standard product level, making this product suitable for high-end optical applications.
High-purity gadolinium oxide (Gd₂O₃)
Standard product
Particle size distribution D50%: 2–3 µm
Fine particles
Particle size distribution D50%: 0.5–1 µm
This is a high-purity gadolinium oxide product with ultra minimal radioactive impurities (U, Th etc.) and other rare earths (Eu etc.). It is suitable for special optical applications that are affected by noise due to radioactive elements, or for medical applications (scintillators, contrast media etc.) that have strict specifications for impurities. Powder properties can be controlled, and various salts are also available upon request.
High-purity lutetium oxide (Lu₂O₃)
Standard product
Particle size distribution D50%: 2–5 µm
Fine particles
Particle size distribution (D50%): 0.5–2 µm
Frequently Asked Questions
QPlease tell me the purity of the oxide.
We offer oxides in various grades of purity (TREO) ranging from 99.9% to 99.999%, so please feel free to contact us.
Please feel free to contact us for product case studies or technical consultations.
