Tribological and thermal properties of hexagonal boron nitride filled high-performance polymer nanocomposites

2016 ◽  
Vol 134 (4) ◽  
Author(s):  
Manoj D. Joshi ◽  
A. Goyal ◽  
S. M. Patil ◽  
R. K. Goyal
Keyword(s):  
Thermal Properties ◽  
Boron Nitride ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Hexagonal Boron Nitride ◽  
High Performance Polymer

scholarly journals Nanocellulose and nanoclay as reinforcement materials in polymer composites: A review

2020 ◽  
Vol 16 (2) ◽  
pp. 145-153
Author(s):  
Fathin Najihah Nor Mohd Hussin ◽  
Roswanira Abdul Wahab ◽  
Nursyafreena Attan
Keyword(s):  
Mechanical Properties ◽  
Thermal Properties ◽  
Environmental Impact ◽  
Polymer Composites ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Reinforced Polymer ◽  
Low Weight ◽  
High Performance Polymer ◽  
Strength And Stiffness

The advancement of nanotechnology has opened a new opportunity to develop nanocomposites using nanocellulose (NC) and nanoclay (NCl). Researchers have regarded these nanocomposites as promising substitutes for conventional polymers because of their characteristic and useful features, which include exceptional strength and stiffness, low weight, and low environmental impact. These features of NC and NCl explain their multifarious applications across many sectors. Here we review NC and NCl as well as various reinforced polymer composites that are made up of either of the two nanomaterials. The structural and physicochemical properties of NC and NCl are highlighted, along with the mechanical behavior and thermal properties of NC. Current nanomaterial hybrid biopolymers for the production of novel high-performance polymer nanocomposites are also discussed with respect to their mechanical properties.

scholarly journals Nitrogen-mediated aligned growth of hexagonal BN films for reliable high-performance InSe transistors

2020 ◽  
Vol 8 (13) ◽  
pp. 4421-4431 ◽  
Author(s):  
Soon Siang Chng ◽  
Minmin Zhu ◽  
Jing Wu ◽  
Xizu Wang ◽  
Zhi Kai Ng ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Boron Nitride ◽  
High Performance ◽  
Hexagonal Boron Nitride ◽  
Mechanical And Thermal Properties ◽  
Aligned Growth

Orientation controlled hexagonal boron nitride (h-BN) films exhibit excellent mechanical and thermal properties, making them attractive for diverse applications.

scholarly journals First-Principles Study of the Electronic Properties and Thermal Expansivity of a Hybrid 2D Carbon and Boron Nitride Material

2021 ◽  
Vol 7 (1) ◽  
pp. 5
Author(s):  
Okikiola Olaniyan ◽  
Lyudmila V. Moskaleva
Keyword(s):  
Thermal Properties ◽  
Boron Nitride ◽  
First Principles ◽  
Low Temperatures ◽  
High Performance ◽  
Rational Design ◽  
Hexagonal Boron Nitride ◽  
Linear Thermal Expansion ◽  
Structure Characteristic ◽  
Mechanical And Thermal Properties

In an attempt to push the boundary of miniaturization, there has been a rising interest in two-dimensional (2D) semiconductors with superior electronic, mechanical, and thermal properties as alternatives for silicon-based devices. Due to their fascinating properties resulting from lowering dimensionality, hexagonal boron nitride (h-BN) and graphene are considered promising candidates to be used in the next generation of high-performance devices. However, neither h-BN nor graphene is a semiconductor due to a zero bandgap in the one case and a too large bandgap in the other case. Here, we demonstrate from first-principles calculations that a hybrid 2D material formed by cross-linking alternating chains of carbon and boron nitride (HCBN) shows promising characteristics combining the thermal merits of graphene and h-BN while possessing the electronic structure characteristic of a semiconductor. Our calculations demonstrate that the thermal properties of HCBN are comparable to those of h-BN and graphene (parent systems). HCBN is dynamically stable and has a bandgap of 2.43 eV. At low temperatures, it exhibits smaller thermal contraction than the parent systems. However, beyond room temperature, in contrast to the parent systems, it has a positive but finitely small linear-thermal expansion coefficient. The calculated isothermal bulk modulus indicates that at high temperatures, HCBN is less compressible, whereas at low temperatures it is more compressible relative to the parent systems. The results of our study are important for the rational design of a 2D semiconductor with good thermal properties.

Reaction Synthesized Boron Nitride-Containing Composites (BNCC)

2007 ◽  
Vol 280-283 ◽  
pp. 1385-1390
Author(s):  
Guo Jun Zhang ◽  
Tatsuki Ohji ◽  
Shuzo Kanzaki
Keyword(s):  
Boron Nitride ◽  
Hot Pressing ◽  
High Performance ◽  
Hexagonal Boron Nitride ◽  
High Strength ◽  
Reactive Sintering ◽  
Boron Source ◽  
Inorganic Reactions ◽  
Reactive Hot Pressing

Based on the proposed inorganic reactions a series of high performance hexagonal boron nitride-containing composites (BNCC), include SiC-BN, Si3N4-SiC-BN, SiAlON-BN, AlN-BN, Al2O3-BN, AlON-BN and mullite-BN, have been prepared via reactive hot pressing or pressureless reactive sintering. Various boron-bearing components such as B, B4C, AlB2, SiB4, SiB6, B2O3 or H3BO3, 9Al2O3×2B2O3 (9A2B) and 2Al2O3×B2O3 (2AB) are used as the boron source. On the other hand, nitrogen gas or solid state nitirgen-bearing metal nitrides such as Si3N4 and AlN can be used as the nitrogen source. The in situ synthesized composites demonstrated homogeneous and isotropical microstructures with very fine (nano-sized) BN platelets or their agglomerates distributed in the matrixes. These composites showed high strength, low elasticity and improved strain tolerance. In this article the reaction design, thermodynamics, reaction mechanisms, reactive hot pressing or pressureless reactive sintering, microstructures and mechanical properties will be discussed.

Designing high performance polymer nanocomposites by incorporating robustness-controlled polymeric nanoparticles: insights from molecular dynamics

2022 ◽  
Author(s):  
Guangyi Hou ◽  
Sai Li ◽  
Jun Liu ◽  
Yun-Xuan Weng ◽  
Liqun Zhang
Keyword(s):  
Molecular Dynamics ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
Polymeric Nanoparticles ◽  
Polymer Nanoparticles ◽  
Polymer Matrices ◽  
Interesting Topic ◽  
High Performance Polymer

Introducing polymer nanoparticles into polymer matrices is an interesting topic, and the robustness of polymeric nanoparticles is very crucial for the properties of polymer nanocomposites (PNCs). In this study, by...

From carbon nanotube coatings to high-performance polymer nanocomposites

2008 ◽  
Vol 57 (4) ◽  
pp. 547-553 ◽  
Author(s):  
Stéphane Bredeau ◽  
Sophie Peeterbroeck ◽  
Daniel Bonduel ◽  
Michaël Alexandre ◽  
Philippe Dubois
Keyword(s):  
Carbon Nanotube ◽  
Polymer Nanocomposites ◽  
High Performance ◽  
High Performance Polymer

Wafer-scale single-crystal hexagonal boron nitride film via self-collimated grain formation

Science ◽  
2018 ◽  
Vol 362 (6416) ◽  
pp. 817-821 ◽  
Author(s):  
Joo Song Lee ◽  
Soo Ho Choi ◽  
Seok Joon Yun ◽  
Yong In Kim ◽  
Stephen Boandoh ◽  
...  
Keyword(s):  
Boron Nitride ◽  
High Performance ◽  
Hexagonal Boron Nitride ◽  
Chemical Vapor ◽  
Nitride Film ◽  
Monolayer Films ◽  
Single Crystalline ◽  
Wafer Scale ◽  
Liquid Gold ◽  
Grain Formation

Although polycrystalline hexagonal boron nitride (PC-hBN) has been realized, defects and grain boundaries still cause charge scatterings and trap sites, impeding high-performance electronics. Here, we report a method of synthesizing wafer-scale single-crystalline hBN (SC-hBN) monolayer films by chemical vapor deposition. The limited solubility of boron (B) and nitrogen (N) atoms in liquid gold promotes high diffusion of adatoms on the surface of liquid at high temperature to provoke the circular hBN grains. These further evolve into closely packed unimodal grains by means of self-collimation of B and N edges inherited by electrostatic interaction between grains, eventually forming an SC-hBN film on a wafer scale. This SC-hBN film also allows for the synthesis of wafer-scale graphene/hBN heterostructure and single-crystalline tungsten disulfide.

Sign in / Sign up

Export Citation Format

Share Document