Niobium diboride (NbB2)

Niobium diboride (NbB2) is a highly covalent refractory ceramic material with a hexagonal crystal structure. NbB2 is an ultra-high temperature ceramic (UHTC) with a melting point of 3050°C.

Molecular weight:114.526

Density:6.97 g/cm3

Colour:gray

Melting point:3050°C

Formula: NbB2

CAS NO.：12007-29-3

EINECS (EC NO.)：234-503-3

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Product Description Product Features Technical Specification Related Products

Product Description

Niobium diboride (NbB2) is a highly covalent refractory ceramic material with a hexagonal crystal structure. NbB2 is an ultra-high temperature ceramic (UHTC) with a melting point of 3050°C. Coupled with the relatively low density of ~6.97 g/cm3 and good high temperature strength, it is a candidate for high temperature aerospace applications, such as hypersonic flight or rocket propulsion systems.

Product Features

1.High purity: the highest purity can reach 99.99%, XRD detect no impurity phase, GDMS detect low metal impurity element content;

2.Concentrated distribution: standard normal particle size distribution, no bimodal or multimodal.

Technical Specification

Model	APS(D50)	Purity(%)	O(%)	N(%)	C(%)	B(%)
NbB20020	1.0-3.0um	>99.5	≤.0.5	≤0.05	≤0.10	18.2～18.8
NbB20001	-325mesh	>99.9	≤0.3	≤0.05	≤0.10	18.2～18.8
Customized chemical composition and particle size can be made according to customer requirements.

Element	Max Value	Real Value	Element	Max Value	Real Value	Element	Max Value	Real Value
Al	0.0010	0.0005	Fe	0.0500	0.0300	P	0.0010	0.0005
As	0.0010	0.0005	K	0.0020	0.0010	Pb	0.0003	0.0001
Bi	0.0003	0.0001	Mg	0.0020	0.0010	S	0.0010	0.0005
Ca	0.0015	0.0006	Mn	0.0010	0.0005	Sb	0.0020	0.0010
Cd	0.0005	0.0001	Mo	0.0030	0.0015	Si	0.0050	0.0030
Co	0.0005	0.0001	Na	0.0020	0.0005	Sn	0.0003	0.0001
Cr	0.0050	0.0020	Ni	0.0050	0.0030	Ti	0.0050	0.0020
Cu	0.0003	0.0001	Ta	0.0030	0.0010	V	0.0050	0.0010

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