Product Introduction

Rare Earth Oxides

●Purity

There are various grades of product from 99.9% (3N) to 99.9999% (6N).
Please contact us for details.

●Particle size

We have a line-up from micron scale to nano scale.

For fine powders, we have the following line-up.

Line-up of Fine Powder Types

Purity Type Size Shape Image
3-6N STD 2~10µm Indefinite
3N RU ≒ 1µm Indefinite
BB (Large Specific
Surface Area)
Indefinite
UU ≒ 0.3µm Spherical
UUHP ≒ 0.1µm Spherical
UUNP ≒ 50nm Spherical
NPS ≒ 20nm Spherical
The above data are reference values and do not guarantee. Please contact us for the details.

Line-up of Fine Powders by Element

Size 2-10µm ≒ 1µm ≒ 0.3µm ≒ 0.1µm 50-100nm ≒20nm (Large S.S.A)
La STD Hydroxide × × × × ×
Ce C
Pr SU-FP
Nd Hydroxide
Eu RU BB
Gd UU UUHP UUNP NPS
Tb
Dy SU-FP
Ho RU
Y
Er
Tm ×
Yb UUHP UUNP NPS BB
Lu
・The particle size of STD (standard) types are different according to each element.
・The oxides of La and Nd have high moisture absorbency and it is difficult to make them into fine particles.
 Instead of the above, we propose hydroxides.
・The △ in Tm means that there is no trial production so far.
・Sc is available in STD type of about 7-13 µm and fine powder type of about 0.5 µm.

Large Particle Size Powder (for Thermal Spray)

×100 ×1000
QU Type

Particle size:≒16 ~ 50 µm

We have a variety of granulated powders including yttrium oxides,
fluorides, oxyfluorides and complex oxides.
Please contact us for particle size.

PQ Type

Particle size:≒8 ~ 50 µm

This is under development type. Compared with granulated powder, it has the uniform particle size.
Please contact us for details.

Shin-Etsu owns the following patents for thermal spray powder.

●Patents in the U.S.A.

5545386, 5879647, 5914287, 6080485, 6576354, 6733843, 6685991, 6916534, 6767636, 6596397, 6794047, 6852433, 7462407, 7968205, 7655328, 8138060, 8337956, 7816013

●Patents in Japan

3523216, 3523222, 3672833, 3829935, 3894313, 4006596, 4023774, 4044348, 4081574, 4171916, 4189676, 4231990, 4273292, 4544425, 4591722, 4650598, 4663927, 4716042, 4905697, 4952953, 4985928, 5154141, 5212607, 5245365

Please contact us for other rare earth compounds such as hydroxides, fluorides, complex oxides, etc.

Contact us