Huizhou Tianyi rare material Co., Ltd

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Rare Earth Nitride

Rare Earth Nitride

Rare Earth Metal            Rare Earth Oxide          Rare Earth Alloy          Rare Earth Fluoride

Rare Earth Boride          Rare Earth Iodide         Rare Earth Chloride      Rare Earth Sulfide 

Rare Earth Selenide        Rare Earth Telluride

 

 Our Rare Earth Nitride Product list as following:

 

         Rare Earth Nitride Powder     

 

 Rare Earth Nitride Powder-325mesh-200mesh-160mesh-100mesh e.t.c particle size

 

Any special particle size, quantity e.t.c, can be made per requested.

 

 

Material Name

Purity

Form Available

LaN

99.5%

Powder

CeN

99.5%

Powder

 PrN

99.5%

Powder

NdN

99.5%

Powder

SmN

99.5%

Powder

GdN

99.5%

Powder

TbN

 99.5%

Powder

DyN

 99.5%

Powder

HoN

 99.5%

Powder

 ErN

 99.5%

Powder

 TmN

 99.5%

Powder

YbN

 99.5%

Powder

YN

 99.5%

Powder

 ScN

 99.5%

Powder

 LuN

 99.5%

Powder

 

Rare Earth knowledge basic

What about the purity of rare earth metal ?

Explain for purity of Rare Earth Metalwhat is the purity of Rare Earth MetalWhats mean is “TREM”Whats means is the “RE/TREM”?, TREM means Total content of Rare Earth Metal, RE/TREM means this RE element's content in the Total content of Rare Earth Metal; for example La/TREM: 99.9%, TREM: 99%, means La element content is 99.9% in the total content of Rare Earth Metal and Total content of Rare Earth Metal is 99%.

 

Total content of Rare Earth Metal are include those elements, Total 16 elements. They are La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sc, Y

RE = rare earth

REM = rare-earth metals

REE = rare-earth elements

REO = rare-earth oxides

REY = rare-earth elements and yttrium

LREE = light rare earth elements (Sc, La, Ce, Pr, Nd, Pm, Sm, Eu, and Gd; also known as the cerium group)

HREE = heavy rare earth elements (Y, Tb, Dy, Ho, Er, Tm, Yb, and Lu; also known as the yttrium group

 

The rare-earth nitrides (ReNs) ApplicationRare earth nitride are a class of novel materials with potential for use in semiconductor spintronics and ceramic applications. Theoretical studies indicate that among the ReNs there could be half-metals, semimetals and semiconductors, all exhibiting strong magnetic ordering. This is because of the complex interaction between the partially filled rare-earth 4f orbital and the nitrogen 2p valence and rare-earth 5d conduction bands. This thesis uses experimental and theoretical techniques to probe the ReN electronic structure. Thin films of SmN, EuN, GdN, DyN, LuN and HfN have been produced for study. Basic characterization shows that the films are of a high quality. The result of electrical transport, magnetometry, and optical and x-ray spectroscopy are interpreted to provide information on the electronic structure. SmN, GdN, DyN are found to be semiconductors in their ferromagnetic ground state while HfN is a metal. Results are compared with density functional theory (DFT) based calculations. The free parameters resulting from use of the local spin density approximation with Hubbard-U corrections as the exchange-correlation functional are adjusted to reach good agreement with x-ray absorption and emission spectroscopy at the nitrogen K-edge. Resonant x-ray emission is used to experimentally measure valence band dispersion of GdN. No evidence of the rare-earth 4f levels is found in any of the K-edge spectroscopy, which is consistent with the result of M-edge x-ray absorption which show that the 4f wave function of the rare-earths in.

the ReNs are very similar to those of rare-earth metal

The optical and electrical properties of the rare earth nitrides DyN, ErN, and HoN as well as ScN and YN have been surveyed. From absorption edges found in the optical transmission curves, energy gaps in the 2eV range were determined as follows: DyN 2.60–2.90 eV, ErN 2.40–2.78 eV, HoN 1.70–1.88 eV, where the spread in energies is due to differences observed in two experimental runs. For ScN and YN no definite absorption edge was found. The electrical properties from 80° up to 1500°K were found to be metallic with associated large concentrations of electron carriers. These results are interpreted to suggest that the present species of nitrides which were all deficient in nitrogen content are high energy gap defect type degenerate semiconductors. The large concentrations of charge carriers are attributed to the lack of stoichiometry so far achieved

 

The rare earth nitrides are promising magnetic refrigerant materials for hydrogen liquefaction systems working below liquid nitrogen temperatures

The rare earth nitrides are easy get oxidated.

Lanthanum Nitride, CAS number: 25764-10-7, Mol. Wt.152.912La/N=138.9055/14.0067at=90.840/9.160wt%, Appearance: black powder, melt point: 2560oC,

Cerium nitride, CeN, CAS Number: 25764-08-3 , Molecular Weight: 154.1227, melt point: 2560 oC, density: 7.9g/cm3, Appearance: black crystalline solidcomposition rate: Ce/N=90.91/9.09wt%, 

Rare Earth Neodymium nitride, NdN, CAS registry number: 25764-11-8, Formula weight: 158.247, Class: nitride, density:7.69g/cm3, Element percentagesN/Nd= 8.85/ 91.15wt%

Rare Earth Gadolinium nitride, GdN, CAS registry number: 25764-15-2, Formula weight: 171.257, Appearance: crystalline solid, Element percentages: Gd/N=91.82/8.18wt%, Gadolinium nitride films have been deposited on Si(100) using a plasma-enhanced ALD (PEALD) based process, less successful attempts to deposit gadolinium nitride using thermal ALD with ammonia or mono-methyl-hydrazine are also reported. The thesis presented here deals electronic and magnetic properties of Gd doped GaN and Gadolinium pnictides. GdN is a ferromagnetic semiconductor while the other Gd-pnicitides GdX with X=P,As,Sb,Bi are all antiferromagnetic and semimetallic. Gd-doped GaN is ferromagnetic above room temperatures even in very dilute concentrations of Gd and has been claimed to have colossal magnetic moments.

Rare Earth Terbium nitride, TbN, CAS registry number: 12033-64-6 (207844-92-6), Formula weight: 172.932, Density: 9.55g/cm3, Element percentages: Tb/N=91.9/8.1wt%=158.92534/14.0067at%, use in electron and semiconductor industry.

Rare Earth Dysprosium nitride, DyN, CAS registry number: 12019-88-4, Formula weight: 176.507, Appearance: crystalline solid, density:9.93g/cm3, Element percentages: Dy/N=92.06/7.94wt%, Dysprosium nitride, DyN is use in optical and electrical properties.

Rare earth Holmium nitride, HoN, CAS registry number: 12029-81-1, Formula weight: 178.937, Appearance: crystalline solid, density:10.6g/cm3, Element percentages: Ho/N=92.17/7.83wt%, Rare earth Holmium nitride, HoN is use in optical and electrical properties.

Rare earth Ytterbium nitride, YbN, CAS registry number: 24600-77-9, Formula weight: 187.05, use in optical and electrical properties.

Rare earth Yttrium nitride, YNCAS number: 25764-13-0, Molar mass: 102.91, melt point: 2 570, Density: 5.6g/cm3, Appearance: black crystalline; Yttrium nitride is hard ceramic material similar to titanium nitride and zirconium nitride. The nitrides of lanthanum, scandium, and yttrium show semiconducting properties and additionally the lattice structure of YN differs only by 8% from that of gallium nitride. This makes YN a possible buffer layer between a substrate and the GaN layer during GaN crystal growth. The Crystal Structure of Yttrium Nitride is cubic, cF8

Rare earth Scandium nitride, ScN, CAS Registry number: 25764-12-9, Formula weight: 58.96, melt point: 2600 oC, ScN has excellent physical properties of high hardness, mechanical strength, high emperature sability and electronic transport properties, which are typical of transition metal nitrides.The group of kordesch successfully synthesized ScN on different substrates by two methods:  Plasma assisted physical vapor deposition (PAPVD) and Reactive rf-sputtering

ScN crystals were grown on tungsten foil by sublimation–recondensation method in the temperature range of 1840–2060 C, pressure range of 15–230 Torr under a nitrogen atmosphere.

 

About Rare earth pricing

Rare earth elements are not exchange-traded in the same way that precious (for instance, gold and silver) or non-ferrous Oxides (such as nickel, tin, copper, and aluminium) are. Instead they are sold on the private market, which makes their prices difficult to monitor and track. The 17 elements are not usually sold in their pure form, but instead are distributed in mixtures of varying purity, e.g. "Neodymium Oxide ≥ 99%". As such, pricing can vary based on the quantity and quality required by the end user's application.

 

 

 

 

 

 

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