Dysprosium (Dy)
MATERIAL
OVERVIEW
(Gr. dysprositos, hard to get at) Dysprosium was discovered in 1886 by Lecoq de Boisbaudran, but not isolated. Neither the oxide nor the metal was available in relatively pure form until 1950 , when the development of ion-exchange separation and metallographic reduction techniques were created by Spedding and associates. Dysprosium occurs along with other so-called rare-earth or lanthanide elements in a variety of minerals such as xenotime, fergusonite, gadolinite, euxenite, polycrase, and blomstrandine. The most important sources, however, are from monaziate and bastnasite. Dysprosium can be prepared by reduction of the trifluoride with calcium.
The element has a metallic, bright silver luster. It is relatively stable in air at room temperature, and is readily attacked and dissolved by dilute and concentrated mineral acids, to evolve hydrogen . The metal is soft enough to be cut with a knife and can be machined without sparking if overheating is avoided. Small amounts of impurities can greatly affect its physical properties.
While we have not found many applications for dysprosium, its thermal neutron absorption cross-section and high melting point suggest metallurgical uses in nuclear control applications and for alloying with special stainless steels. A dysprosium oxide-nickel cement has found use in cooling nuclear reactor rods. This cement absorbs neutrons readily without swelling or contracting under prolonged neutron bombardment. In combination with vanadium and other rare earths, dysprosium has been used in making laser materials. Dysprosium-cadmium chalcogenides, as sources of infrared radiation, have been used for studying chemical reactions.
Reference: Los Alamos National Laboratory, <http://periodic.lanl.gov/elements/66.html>
GENERAL
PROPERTIES
|
Symbol: |
Dy |
|
Atomic
Number: |
66 |
|
Atomic
Weight: |
162.50 |
|
Density: |
8.550
gm/cc |
|
Melting
Point: |
1412
oC |
|
Boiling
Point: |
2562
oC |
|
Thermal
Conductivity: |
0.107
W/cm/oK
@ 298.2 oK |
|
Electrical
Resistivity: |
57.0
microhm-cm @ 25 oC |
|
Electronegativity: |
- |
|
Specific
Heat: |
0.0414
Cal/g/oK
@ 25 oC |
|
Heat
of Vaporization: |
67
K-cal/gm atom at 2562 oC |
|
Heat
of Fusion: |
4.10
Cal/gm mole |
TYPICAL ANALYSES
Impurities in ppm
|
Material
/ Purity: |
3N
|
|
Ho |
100 |
|
Y
|
<100 |
|
Er |
<100 |
|
Ca |
<100 |
|
Fe |
100 |
|
Mg |
<100 |
|
Si |
<100 |
|
Tb |
100 |
|
Ni |
<100 |
|
Al |
<100 |
|
Gd |
<100 |
DYSPROSIUM ROD
|
Material |
Purity |
|
Dysprosium
Rod .250” |
3N |
|
Dysprosium
Rod .500” |
3N |
Additional
diameters can be drawn in 2-3 days.
Rod is cut to order and sold by the inch or foot.
DYSPROSIUM FOIL
|
Material
|
Purity |
|
Dysprosium
Foil .001” |
3N |
|
Dysprosium
Foil .002” |
3N |
|
Dysprosium
Foil .003” |
3N |
|
Dysprosium
Foil .004” |
3N |
|
Dysprosium
Foil .005” |
3N |
|
Dysprosium
Foil .006” |
3N |
|
Dysprosium
Foil .007” |
3N |
|
Dysprosium
Foil .008” |
3N |
|
Dysprosium
Foil .009” |
3N |
Foil is
cut to order and sold by the square inch or square foot.
DYSPROSIUM SHEET
|
Material |
Purity |
|
Dysprosium
Sheet .010” to 0.5” |
3N |
Sheet
thicknesses are available in increments of .001”.
Sheet is cut to order and sold by the square inch.
DYSPROSIUM SPUTTERING
TARGETS
|
Material |
Purity |
|
Dysprosium
Sputtering Target 2"D X .125"T |
3N |
|
Dysprosium
Sputtering Target 2"D X .250"T |
3N |
|
Dysprosium
Sputtering Target 3"D X .125"T |
3N |
|
Dysprosium
Sputtering Target 3"D X .250"T |
3N |
|
Dysprosium
Sputtering Target 4"D X .125"T |
3N |
|
Dysprosium
Sputtering Target 4"D X .250"T |
3N |
Additional
sizes and sputtering targets produced from compounds are available
upon request.
DYSPROSIUM POWDER,
SHOT, PELLETS, & INGOT
|
Material |
Purity |
|
Dysprosium
Chips |
3N |
|
Dysprosium
Pellets .250"D X .250"L |
3N |
|
Dysprosium
Ingot |
3N |
|
Dysprosium
Powder -40 Mesh, Under Oil |
3N |
|
Dysprosium
Powder -40 Mesh, Ampoules Under Dry Argon |
3N |
|
Dysprosium
Powder -40 Mesh, Cans Under Dry Argon |
3N |
Powder,
pellets, and ingots are packaged to order and sold by the gram or kilogram.
DYSPROSIUM COMPOUNDS
|
Material |
Purity |
|
Dysprosium
Aluminide DyAl2
1/4" Pieces by Down |
2N5 |
|
Dysprosium
Antimonide DySb 1/4" Pieces by Down |
2N5 |
|
Dysprosium
Bismuthide DyBi 1/4" Pieces by Down |
2N5 |
|
Dysprosium
Boride DyB4
&
DyB6
-60 Mesh |
3N |
|
Dysprosium
Bromide DyBr-xH2O
-60 Mesh |
3N |
|
Dysprosium
Bromide DyBr3
-60 Mesh |
3N |
|
Dysprosium
Fluoride DyF3
1/4"-1/8" Pieces |
3N |
|
Dysprosium
Fluoride DyF3
1/4"-1/8" Pieces |
3N |
|
Dysprosium
Fluoride DyF3
-60 & -235 Mesh |
3N |
|
Dysprosium
Hydride DyH2-3
-40 Mesh |
3N |
|
Dysprosium
Iodide DyI3-xH2O
-60 Mesh |
3N |
|
Dysprosium
Iodide DyI3
-60 Mesh |
3N |
|
Dysprosium
Nitride DyN -60 Mesh |
3N |
|
Dysprosium
Oxide Dy2O3
-325 Mesh |
3N,
5N |
|
Dysprosium
Oxide Dy2O3
1/2" to 1/8" Pieces |
3N |
|
Dysprosium
Selenide Dy2Se3
-100 Mesh |
3N |
|
Dysprosium
Silicide DySi2
1/4" Pieces by Down |
3N |
|
Dysprosium
Sulfide Dy2S3
-200 Mesh |
3N |
|
Dysprosium Telluride Dy2Te3 -20 Mesh |
3N |
Compounds
are packaged to order and sold by the gram or kilogram.
|