cubic boron porous

Porous metal-bonded cubic boron nitride wheel, grinding temperature, energy partitioning, wheel wear, high-efficiency deep grinding Date received: 24 April 2015; accepted: 27 October 2015

Abstract Functionalization of boron nitride (BN) materials with hydroxyls has attracted great attention to accomplish better performances at micro- and nanoscale. BN surface hydroxylation, in fact, induces a change in properties and allows expanding the fields of application. In this review, we have summarized the state-of-the-art in developing …

Porous metal-bonded wheels coupled with the aggregated cubic boron nitride (cBN) grains and water-soluble carbamide particles as pore-forming agents were fabricated, aiming to the improvement of grinding wheel performance and ground surface quality in grinding of Ti–6Al–4V alloys. Grinding forces and force ratio, ground surface …

Porous metal-bonded cubic boron nitride (CBN) grinding wheels associated with desired porosity and excellent mechanical property are fabricated by employing alumina bubbles as pore-forming agents. The pore structures, including pore size, concentration and distribution, are optimised and correlated with the flexural strength of …

The recrystallization behaviour of micron-sized cubic boron nitride (cBN) was studied by analysing the grain size and morphology of samples treated at 8−16 GPa/1500–2200 °C. The results show that the recrystallization temperature of cBN under a pressure of 8 GPa is approximately 1650 °C and increases by approximately 100 °C …

Cubic boron nitride (cBN) superabrasive grinding wheels have been increasingly used in high-quality machining of difficult-to-cut materials, ... Porous metal-bonded grinding wheels coupled with AcBN abrasive grains were fabricated via high-temperature sintering. The grinding performance, including grinding ratio, grinding forces …

The obtained WC-0.05 wt% ultrafine porous boron nitride nanofiber composites exhibited better properties (ie, a 2.3% increase in hardness and a 19.6% increase in fracture toughness) compared to …

Cubic boron nitride abrasive grains with the mesh size of #40/50 were selected to conduct the single abrasive grain grinding experiment. The CBN grain was brazed at the holding unit made of AISI 1045 steel with Ag–Cu–Ti composite filler alloy by the high frequency inductive brazing device. The holding unit was assembled at the …

Porous boron nitride (BN) has proven promising as a novel class of inorganic materials in the field of separations and particularly adsorption. Owing to its high surface area and thermal stability, porous BN has been researched for CO2 capture and water cleaning, for instance. However, research remains at the laboratory scale due to a …

Porous boron nitride (BN) materials are getting an increasing interest because of their outstanding features and a variety of applications. In recent years, nanoarchitectonics concepts has immerged to expand the physicochemical behavior, such as morphology, porosity, and functionality, as well as prospect of BN-based materials in …

High-efficiency deep grinding experiments of Inconel 718 nickel-based superalloy was carried out with the porous metal-bonded cubic boron nitride superabrasive wheel, in which the uniform and large pores were formed by the broken alumina bubble particles in the working layer after wheel dressing. Grinding temperature, …

High-efficiency deep grinding experiments of Inconel 718 nickel-based superalloy was carried out with the porous metal-bonded cubic boron nitride superabrasive wheel, in …

Through the example of grinding high-temperature nickel and titanium alloys and high-alloy steels using highly porous vitrified cubic boron nitride wheels, the authors have demonstrated the ...

open access. Abstract. Cubic boron nitride (cBN) superabrasive grinding wheels exhibit unique advantages in the grinding of difficult-to-cut materials with high …

Wear-resistant, super hard ceramic composites based on cubic boron nitride (cBN) are of great interest to industry. However, cBN is metastable under sintering conditions at normal pressure and converts into the soft hexagonal BN (hBN). ... The investigations showed that the TiN layer reacts in Ar at T ≥ 1200 °C with the cBN and …

Boron nitride with four different types: hexagonal boron nitride (HBN), diamond-like cubic boron nitride (CBN), cubic boron nitride (CBN) and wurtzite boron nitride (WBN) [31]. Boron nitride material is very strong, and the density (2.3 g cm − ³) is lower than that of metallic aluminum. Therefore, boron nitride as a lightweight and high ...

boron nitride (w-BN), and cubic boron nitride (c-BN) are found to be in crystalline nature [] (Fig. 1 1a), showing a key dierence in the hybridization of BN nanostructures. For example, the dense phases r-BN and h-BN exhibited sp 2 hybridization, whereas the low-density phases c-BN and w-BN showed sp 3 hybridised B–N bonds. The cubic and

Porous metal-bonded cubic boron nitride (CBN) grinding wheels associated with desired porosity and excellent. mechanical property are fabricated by employing alumina bubbles as pore-forming agents.

Structural and electronic properties of Zn-doped cubic boron nitride (cBN) were investigated via first principle calculation based on density functional theory. Our simulation suggests that Zn can substitute for both B (Zn B) and N (Zn N) atom; Zn B is energetically favorable, and Zn N can only be prepared under B-rich conditions.

Porous aggregated cubic boron nitride wheel. Open-pore structure. Self-sharpening ability. Grinding performance. 1. Introduction. Grinding process has become the major method to achieve the final geometrical/form of key components in aerospace engineering, especially for the high strength-toughness difficult-to-cut materials …

Product name : Boron nitride Product Number : 255475 Brand : Aldrich CAS-No. : 1 1.2 Relevant identified uses of the substance or mixture and uses advised against Identified uses : Laboratory chemicals, Synthesis of substances Uses advised against : The product is being supplied under the TSCA R&D Exemption

The optimized B-doped rich edge-N porous carbon (BENC) with matchable pore size to accommodate solvated Zn 2+ and abundant zincophilic sites exhibits outstanding Zn 2+ storage capabilities and delivers a high reversible capacity (354.6 F g −1 at 0.1 A g −1), excellent power density (126.2 W h kg −1) and almost no capacity loss …

Grinding temperature, energy partitioning into workpiece, and wheel wear were investigated. Results obtained show that long maintenance of low grinding …

Cubic boron nitride (cBN) is a well known superhard material that has a wide range of industrial applications. Nanostructuring of cBN is an effective way to improve its hardness by virtue of the ...

A series of high solid content (30 wt%) epoxy resin (EP) composite coatings reinforced with differently sized cubic boron nitride (CBN) particles were fabricated successfully on 304L stainless steel. Polydopamine (PDA) was used to improve the dispersibility of CBN particles in EP. The structural and morphological features of the …

7 Citations. Explore all metrics. Abstract. The paper addresses the influence of composition of highly porous cBN grinding wheels on the efficiency of grinding …

1. Introduction. Cubic boron nitride (c-BN) was first identified in 1975 [1] and has since been extensively analyzed due to its widespread applicability in industrial fields such as grinding and cutting tools, abrasives, and refractory. c-BN has valued chemical and physical properties such as extreme hardness, high thermal conductivity, high …

Porous hexagonal boron nitride whiskers fabricated at low temperature for effective removal of organic pollutants from water. Ceram. Int. 42, 8754–8762 (2016).

Porous metal-bonded cubic boron nitride (CBN) grinding wheels associated with desired porosity and excellent mechanical property are fabricated by employing …

Porous Boron Nitride Nanoarchitectonics for Environment: Adsorption in Water. Review. Published: 20 March 2023. Volume 33, pages 637–662, ( 2023 ) Cite …

Research literature reported that adding nanoparticles [3], such as hexagonal boron nitride (hBN), shown in Fig. 1, into PCM matrices to generate composite phase change materials (CPCMs) improves their thermal conductivity and diffusivity, which allows for a faster rate of heat transfer in PCMs, reducing the time required for the PCM to …

Porous boron nitride (BN) is a recent addition to the porous materials family.1–3 With alternating boron and nitrogen atoms linked via strong B–N covalent bonds arranged in an hexagonal pattern, the porous BN …