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Nanoparticle Yttrium Fluoride YF3

Nanoparticle Yttrium Fluoride YF3

White powder. insoluble in water,Hardly soluble in hydrochloric acid,nitric acid and sulfuric acid,but soluble in perchloric. acid.hardly absorb moisture in air,stable.
Formula: YF3
Mol.wt: 145.90
Main Application: Plasma coating; optical glass;Thermal spraying

Parameters

 

Brief information of Yttrium Fluoride

Appearance: White powder

Main content: 99.%-99.999%

CAS No: 13709-49-4

Density: 5.01 g/cm3

Stability: Insoluble in water, moderately

Molecular Weight: 225.81

Melting point:: 1387 °C

 

Specification

 

相对纯度
Relative Purity 
Min.%
99.999 99.995 99.99
稀土总量
TREO
Min.%
77±2 77±2 77±2
稀土杂质
RE Impurities/REO  
Max.%
La2O3 0.0001  0.0005  0.0010 
CeO2 0.0001  0.0005  0.0010 
Pr6O11 0.0001  0.0005  0.0010 
Nd2O3 0.0001  0.0005  0.0010 
Sm2O3 0.0001  0.0005  0.0010 
Eu2O3 0.0001  0.0005  0.0010 
Gd2O3 0.0001  0.0005  0.0010 
Tb4O7 0.0001  0.0005  0.0010 
Dy2O3 0.0001  0.0005  0.0010 
Ho2O3 0.0001  0.0005  0.0010 
Er2O3 0.0001  0.0005  0.0010 
Tm2O3 0.0001  0.0005  0.0010 
Yb2O3 0.0001  0.0005  0.0010 
Lu2O3 0.0001  0.0005  0.0010 
非稀土杂质
Non-RE Impurities   
Max.%
Fe2O3 0.0010  0.0050  0.0100 
SiO2 0.0100  0.0200  0.0300 
CaO 0.0050  0.0050  0.0050 
F 39±3 39±3 39±3
灼 减   L.O.I                             Max.% 1 1 1
 

SEM

 

 

Application

The Y2O3 coating was strongly fluorinated under the plasma, and the thickness of the fluorinated layer was increased up to a few hundred nm with bias voltage. XPS analysis also confirmed a significant Y–F bonding on the surface and showed fluorine content at a maximum on the surface, decreasing with the depth from the surface. The etch rate increased with bias voltage and it was slightly higher in YF3 coating, implying that the etch rate depends on the surface fluorination and its removal by incident ions. Without applying bias voltage, the chemical reaction with the fluorocarbon plasma dominated, resulting in the formation of fine fluoride particles on the Y2O3 surface, but the YF3 coating was intact and clean for the same condition.These results indicate that the YF3 coating is a new plasma-facing material that produces fewer contamination particles.

 

 

 

Packing

 

In sealed double polyethylene bags. The bags are packed in steel drums containing 50 Kgs net each.
 

 

Others

 

Specification is adjustable as per user' s special requirement