Tantalum Ib Leeg Crystal

Purity:

99.99% ua

Loj:

Txoj kab uas hla 6-12mm; Thickness 1-2 hli

Kev taw qhia:

(100), (110) thiab (111)

Crystal qauv:

bcc ua

Txoj kev tsim khoom:

Floating Zone

Standard loj:

txoj kab uas hla 6-12mm
thickness 1-2 hli

Kev taw qhia:

(100), (110) thiab (111)

Orientation raug:

<2°,><1°,><0.5° or=""><>

Polishing:

raws li kev txiav, ib los yog ob sab polished

Roughness ntawm qhov chaw:

<>

Purity:

99.99% ua

Kev tsom xam (ppm):

Al <1
C 80
Cov <3
Cu <1
Fe 5
H <10
N 90
O 120
S <10
Si 25
Ua balance

Ceev:

16.6 g / cm3

X-ray diffractions mass absorption coefficients:

CuKa 166 (µ/r) / cm2g-1
MoKa 95.4 (µ/r) / cm2g-1

Neutron scattering length:

0.691 b/{2}} cm

Thermal neutron capture cross-section:

20.6 s. / kuv

Melting point:

2995.85 degree / 3269 degree K

Boiling point:

5424.85 ± 100 degree / 5698 ± 100 degree K

Molar ntim:

10.87 cm 3

Thermal conductivity:

57.5 [300 K] Wm-1K-1

Coefficient ntawm linear thermal expansion:

6.6 x 10-6 K-1

Hluav taws xob resistivity:

12.45x{2}} [298 K] Wm

Mass magnetic susceptibility:

1,07 x 10-8(s) kg-1m3

Young's modulus:

185.7 GPA

Rigidity modulus:

69.2 gvp

Modulus ntau:

196.3 GPA

Poisson tus ratio:

0.342 GPa

Radii:

Ta5 plus 64; Ta4 plus 68; 3 ua 72;. atomic 143; covalent 134

Electronegativity:

1.5 (Pauling); 1.33 (Txhua tus); 4.11 eV (tsis muaj)

Kev siv hluav taws xob nuclear:

3.30 Nws; 9.53 (Clementi); 13.78 (Froese-Fischer) Nws.

Tus naj npawb ntawm Isotopes (nrog rau nuclear isomers):

28

Issotope huab hwm coj ntau yam:

159 -> 186

Toxic noj:

nruab nrab lom los ntawm ingestion

Lethal intake:

LD50 (chloride, qhov ncauj, nas)=1900 mg kg-1

Kev phom sij:

Tsis muaj qhov xwm txheej ntawm kev muaj tshuaj lom los ntawm tantalum los yog nws cov tebchaw. Txawm li cas los xij, nws yog ib qho kev sim qog nqaij hlav.

Ntshav:

na, tab sis qis

Pob txha:

c. 0.03 p.p.m.

Lub siab:

n.a.

Cov leeg:

na, tab sis qis

Kev noj haus txhua hnub:

0.001 mg

Tag nrho qhov hnyav ntawm lub ntsiab hauv nruab nrab [70 kg] tus neeg:

c. 0.2 mg

Columbite

(Fe, Mn)(Ta, Nb)2O6

ib pawg ntawm ores ntawm kev sib xyaw ua ke

Ferrotantalite

FeTa2O6

7.95

6 - 6.5

orth., dub-xim av/dub

Manganotantalite

(Fe, Mn)(Ta, Nb)2O6

6.76

6 - 6.5

orth., dub-xim av/dub

Microlite

(Na, Ca) 2Ta2O6(O, OH, F)

6.42

5 - 5.5

cub., vitreous/resinous yellow

Samarskite

(Y, Ce, U, Fe)3(Nb, Ta, Ti)5O16

5.69

5 - 6

orth., vitreous / resinous dub

MDL Number

TIAB SA 00011252

EC No.

231-135-5

Beilstein/Reaxys No.

N/A

Pubchem CID

23956

SMILES

[Ta]

InchI ID nkag mus

InChI=1S/Ta

InchI Key

GUVRBAGPIYLISA-UHFFFAOYSA-N

Qhov tshwm sim

Silvery-grey khoom

Melting Point

3017 degree

Boiling Point

5 458d

Qhov ntom

16.69 g / cm²³(20 degree)

Solubility hauv H2O

N/A

Crystal Phase / Qauv

: body-centered cubic (bcc) / : tetragonal

Hluav taws xob Resistivity

131 nΩ·m (20 degree)

Electronegativity

1.5 Pauling

Kub ntawm Fusion

36.57 kJ/mol

Kub ntawm Vaporization

753 kJ / mol

Poisson tus ratio

0.34

Tshwj xeeb kub

140 J/kg · K

Thermal conductivity

57.5 W/m·K

Thermal Expansion

6.3 µm/m·K

Vickers Hardness

870-1200 MPa

Young's Modulus

186 GPA