Niobium carbide - Wikipedia
网页Niobium carbide (Nb C and Nb 2 C) is an extremely hard refractory ceramic material, commercially used in tool bits for cutting tools. It is usually processed by sintering and is a frequent additive as grain growth inhibitor in cemented carbides.
Niobium carbide is a new super-hard material - NiobelCon
网页Striking advantages of niobium carbide in industrial applications. More volume per kg purchased compared to WC thanks to much lower density of NbC. Weight reduction achieved with NbC reduces inertia in machining equipment and dynamic applications.
Nb carbide reinforced steel and iron alloys - niobium.tech
网页This paper elucidates the strategies and possible technologies of achieving such composite materials and demonstrates several examples of applications along with the achieved sustainability benefits. In particular, fundamental and …
Recent Progress in Emerging Two-Dimensional Transition Metal Carbides ...
网页2021年8月20日 · This article reviews the progress in the structure, properties, applications and synthesis methods of transition metal carbides represented by niobium carbide, vanadium carbide, molybdenum carbide and titanium carbide.
Niobium - Wikipedia
网页Niobium is an effective microalloying element for steel, within which it forms niobium carbide and niobium nitride. [30] These compounds improve the grain refining, and retard recrystallization and precipitation hardening. These effects in turn increase the toughness, strength, formability, and weldability. [30]
Niobium Carbides - SpringerLink
网页2019年4月25日 · Abstract. Niobium forms with carbon several chemical compounds (see also section C–Nb in Table I-2.13): niobium monocarbide NbC 1−x with the extremely broad homogeneity range, several modifications of niobium semicarbide, such as ordered low-temperature α -Nb 2 C and middle-temperature β -Nb 2+x C and disordered high …
Tantalum and Niobium | Cutting Tool Engineering
网页1998年4月1日 · Tantalum carbide (TaC) and niobium carbide (NbC) are important components of cemented carbides and cermets used for metalcutting applications, primarily indexable inserts.
网页In the Nb–C binary phase diagram, niobium carbides have four experimentally known compositions: NbC, Nb6C5, Nb4C3, and Nb2C.20–22 Stoichiometric NbC is in the rocksalt structure,23 in which Nb atoms form the cubic lattices, and C atoms occupy the octahedral interstitial positions.
Exploring the Structural and Electronic Properties of Niobium Carbide ...
网页2024年7月8日 · This paper systematically investigates the structure, stability, and electronic properties of niobium carbide clusters, Nb m C n (m = 5, 6; n = 1–7), using density functional theory. Nb 5 C 2 and Nb 5 C 6 possess higher dissociation energies and second-order difference energies, indicating that they have higher thermodynamic stability.
Physical Properties of the NbC Carbide - MDPI
网页niobium carbide; chemical bonding; crystal structures; elastic properties; thermal properties. 1. Introduction. Transition metal carbides are metallic compounds with a very unique combination of physical properties: high melting point, high hardness and high thermal and electrical conductivities.