scholarly journals 2D transition metal carbides (MXenes) in metal and ceramic matrix composites

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Brian C. Wyatt ◽  
Srinivasa Kartik Nemani ◽  
Babak Anasori
Keyword(s):  
Transition Metal ◽  
Wave Attenuation ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Future Research ◽  
Matrix Composites ◽  
Metal Carbides ◽  
High Temperature Stability ◽  
Transition Metal Carbides

AbstractTwo-dimensional transition metal carbides, nitrides, and carbonitrides (known as MXenes) have evolved as competitive materials and fillers for developing composites and hybrids for applications ranging from catalysis, energy storage, selective ion filtration, electromagnetic wave attenuation, and electronic/piezoelectric behavior. MXenes’ incorporation into metal matrix and ceramic matrix composites is a growing field with significant potential due to their impressive mechanical, electrical, and chemical behavior. With about 50 synthesized MXene compositions, the degree of control over their composition and structure paired with their high-temperature stability is unique in the field of 2D materials. As a result, MXenes offer a new avenue for application driven design of functional and structural composites with tailorable mechanical, electrical, and thermochemical properties. In this article, we review recent developments for use of MXenes in metal and ceramic composites and provide an outlook for future research in this field.

scholarly journals Si-based polymer-derived ceramics for energy conversion and storage

2022 ◽  
Vol 11 (2) ◽  
pp. 197-246
Author(s):  
Qingbo Wen ◽  
Fangmu Qu ◽  
Zhaoju Yu ◽  
Magdalena Graczyk-Zajac ◽  
Xiang Xiong ◽  
...  
Keyword(s):  
Energy Conversion ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Future Research ◽  
Matrix Composites ◽  
Ceramic Fibers ◽  
Polymer Derived Ceramics ◽  
Structural And Functional Properties ◽  
Energy Conversion And Storage ◽  
And Storage

AbstractSince the 1960s, a new class of Si-based advanced ceramics called polymer-derived ceramics (PDCs) has been widely reported because of their unique capabilities to produce various ceramic materials (e.g., ceramic fibers, ceramic matrix composites, foams, films, and coatings) and their versatile applications. Particularly, due to their promising structural and functional properties for energy conversion and storage, the applications of PDCs in these fields have attracted much attention in recent years. This review highlights the recent progress in the PDC field with the focus on energy conversion and storage applications. Firstly, a brief introduction of the Si-based polymer-derived ceramics in terms of synthesis, processing, and microstructure characterization is provided, followed by a summary of PDCs used in energy conversion systems (mainly in gas turbine engines), including fundamentals and material issues, ceramic matrix composites, ceramic fibers, thermal and environmental barrier coatings, as well as high-temperature sensors. Subsequently, applications of PDCs in the field of energy storage are reviewed with a strong focus on anode materials for lithium and sodium ion batteries. The possible applications of the PDCs in Li-S batteries, supercapacitors, and fuel cells are discussed as well. Finally, a summary of the reported applications and perspectives for future research with PDCs are presented.

Review on Machining Aspects in Metal Matrix and Ceramic Matrix Composites Using Abrasive Waterjet

2015 ◽  
Vol 766-767 ◽  
pp. 643-648 ◽  
Author(s):  
V. Mohankumar ◽  
Mani Kanthababu ◽  
R. Raveendran
Keyword(s):  
Metal Matrix ◽  
Research Work ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Abrasive Waterjet ◽  
Future Research ◽  
Depth Of Cut ◽  
Matrix Composites ◽  
Volume Percentage ◽  
Abrasive Particles

Abrasive waterjet machining (AWJM) is one of the non-traditional machining processes used for machining hard and difficult materials including metal matrix composites (MMCs) and ceramic matrix composites (CMCs). MMCs and CMCs are widely used in the industries such as automobile, aerospace, defense, etc. In AWJM, the material is removed by a narrow stream of high pressure water along with abrasive particles. This work, reviews the research work carried out on the machining aspects of MMCs and CMCs using AJWM. Most of the research work in MMCs is carried out on aluminum based matrix reinforced with ceramics such as silicon carbide (SiC) and aluminum oxide (Al2O3) in various proportions. In the case of CMCs, the research work mostly are carried out on alumina (Al2O3) based work specimen. Generally, it is observed that the reinforcement particles in the MMCs and CMCs greatly influence the output process parameters like depth of the cut, material removal rate (MRR), surface roughness (Ra), kerf width, etc. From the literature review, it is observed that the increase in volume percentage of reinforced abrasive particles results in decreased MRR, decreased in the depth of cut and increase in the Ra. This work also covers the future research work in the machining aspects of MMCs and CMCs.

scholarly journals Continuous Fiber Ceramic Matrix Composites for Gas Turbine Applications

1999 ◽  
Author(s):  
A. Szweda ◽  
T. E. Easler ◽  
D. R. Petrak ◽  
V. A. Black
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Gas Turbine ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Matrix Composites ◽  
Continuous Fiber ◽  
Temperature Capability ◽  
Polymer Impregnation

Continuous fiber ceramic composites (CFCCs) are being considered as high temperature structural materials for gas turbine applications due to their high temperature capability, toughness, and durability. Polymer impregnation and pyrolysis (PIP) derived CFCCs are one class of these materials that can be fabricated using widely available polymer composite processing methods. This paper will discuss the general PIP fabrication process and thermo-mechanical properties of these materials, and show examples of complex prototype gas turbine components that have been fabricated and evaluated.

Ceramic Matrix Composites and its Application in Gas Turbine Engines

1991 ◽  
Author(s):  
Subhash K. Naik ◽  
Andrew Massar ◽  
Jean F. Lecostaouec ◽  
Bruce Thomson
Keyword(s):  
Gas Turbine ◽  
Process Development ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Turbine Engines ◽  
Matrix Composites ◽  
Gas Turbine Engines ◽  
Higher Temperature ◽  
Cooling Air

The key technology requirement for advanced gas turbine engines is the availability of lightweight, higher temperature materials which will allow the components to operate with little or no cooling air. Ceramic Matrix Composites represent one such category. An interturbine duct has been selected as the first component for introducing silicon carbide fiber reinforced silicon nitride composites in advanced engines. An ongoing program is focused on process development, fabrication of components and measurement of mechanical properties. A significant property base continues to be developed for both uni-directional and multi-directional reinforced ceramic composites. The results of the program are presented.

scholarly journals Assessment of Fatigue Damage and Crack Propagation in Ceramic Matrix Composites by Infrared Thermography

Ceramics ◽  
2019 ◽  
Vol 2 (2) ◽  
pp. 393-406 ◽  
Author(s):  
Konstantinos G. Dassios ◽  
Theodore E. Matikas
Keyword(s):  
Infrared Thermography ◽  
Assessment Tool ◽  
Residual Life ◽  
Rapid Determination ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Matrix Composites ◽  
Sic Fiber ◽  
Lock In

The initiation and propagation of damage in SiC fiber-reinforced ceramic matrix composites under static and fatigue loads were assessed by infrared thermography (IRT). The proposed thermographic technique, operating in lock-in mode, enabled early prediction of the residual life of composites, and proved vital in the rapid determination of the materials’ fatigue limit requiring testing of a single specimen only. IRT was also utilized for quantification of crack growth in the materials under cyclic loads. The paper highlights the accuracy and versatility of IRT as a state-of-the art damage assessment tool for ceramic composites.

Electroconductive Ceramic Composites for Cutting Tools

2006 ◽  
Vol 514-516 ◽  
pp. 638-642 ◽  
Author(s):  
Flávia A. Almeida ◽  
Helena Bóia ◽  
Catarina Santos ◽  
Jorge Monteiro ◽  
Filipe J. Oliveira ◽  
...  
Keyword(s):  
Cost Reduction ◽  
Cutting Tools ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Materials ◽  
Ceramic Composites ◽  
Matrix Composites ◽  
Si3n4 Ceramic ◽  
The Cost ◽  
Si3n4 Matrix

The addition of titanium nitride (TiN) particles to a Si3N4 matrix reduces the intrinsic electric resistivity of this ceramic allowing it to be machined by EDM in cutting tools manufacturing. Gains can be expected given the cost reduction by the increase of productivity when shaping these hard to machine ceramic materials. Si3N4 ceramic matrix composites (CMC’s) with 0- 30vol.% of TiN sub-micrometric particles were produced by uniaxial hot pressing (HP) and pressureless sintering (PS). For the PS samples, EDM tests showed that machining of the composites is possible when they contain at least 23vol.% TiN particles what corresponds to a resistivity of 7.5cm. For HP samples at least 30vol.% of TiN is required to get an electroconductive material for EDM machining. This difference is due to the lower temperatures used in the HP process that delay the formation of a conductive network between the TiN particles.

Preparation and characterization of NextelTM 720/ alumina ceramic composites via the prepreg process

2021 ◽  
Author(s):  
Hao Li ◽  
Bo-xing Zhang ◽  
Ying Guo ◽  
Weijian Han ◽  
Tong Zhao ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Ceramic Matrix Composite ◽  
Temperature Stability ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Alumina Ceramic ◽  
Alumina Powder ◽  
High Temperature Stability ◽  
Aqueous Slurry

Abstract In this work, the continuous Nextel™ 720 fiber reinforced alumina ceramic matrix composites (CMCs) were prepared by the prepreg process. The alumina matrix derived from aqueous slurry, which consisted of organic glue, alumina sol, nanometer alumina powder and micrometer alumina powder. This combination endowed the ceramic matrix composite with the prepreg processing capability, making the low-cost fabrication of complex shape components possible. The ratio of different alumina sources in aqueous slurry was optimized to offer good sintering activity, high thermal resistance, and excellent mechanical properties simultaneously. Furthermore, the preceramic polymer of mullite was used to strengthen the ceramic matrix through multiple impregnation process. The final CMC sample achieved a high flexural strength of 255 MPa and a good high-temperature stability. The maximum flexural strength of the CMC sample still remained 85% after heat-treatment at 1100 ℃ for 24 h.

Modeling of Creep of Misaligned Short-Fiber Reinforced Ceramic Composites

1992 ◽  
Vol 59 (1) ◽  
pp. 27-32 ◽  
Author(s):  
John R. Pachalis ◽  
Tsu-Wei Chou
Keyword(s):  
Creep Behavior ◽  
Elevated Temperatures ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Short Fiber ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Lag Model ◽  
Multiaxial Creep

A model is developed to predict the steady-state creep behavior of misaligned short-fiber-reinforced ceramic matrix composites. The approach is based on an advanced shear-lag model and uses the multiaxial creep law for the fibers and matrix. The analysis incorporates some unique characteristics of ceramic matrix composites, such as the fiber/matrix interface sliding effect, shear and axial loads carried by the matrix, and the fact that both the fibers and matrix creep at elevated temperatures. Several parameters are varied to determine their effect on the creep behavior.

Preparation and Properties of SiC/Si-B-C-N Ceramic Composites

2016 ◽  
Vol 697 ◽  
pp. 489-493 ◽  
Author(s):  
Ming Wei Chen ◽  
Hai Peng Qiu ◽  
Wei Jie Xie
Keyword(s):  
Fracture Toughness ◽  
Flexural Strength ◽  
Solid Phase ◽  
Chemical Vapor ◽  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Composites ◽  
Chemical Vapor Infiltration ◽  
Matrix Composites ◽  
Microscopic Morphology

Abstract：SiC/Si-B-C-N and SiC/SiC ceramic matrix composites were prepared through a combination of chemical vapor infiltration (CVI) and polymer impregnation pyrolysis process(PIP). The microscopic morphology and solid phase structure of the SiC/Si-B-C-N and SiC/SiC composites were investigated by SEM and XRD respectively. Moreover,the flexural strength and fracture toughness were measured using three point bending and single-edge notched beam test. Results showed that the formation of crystalline phases transformation was restrained by introduce BN into matrix phase, which might improve the stability of ceramic matrix composites. Furthermore, the flexural strength and fracture toughness of ceramic matrix composites increased to a maximum of 367 MPa and 26.81 MPa·m1/2 with the 30% PBN weight ratios which might be mainly caused by crack arresting, crack deflecting, micro cracks and fiber pullout.

scholarly journals Effect of the Addition of La2O3 on the Properties of ZrO2-Al2O3 Ceramic Composites for Coatings in Aerospace Turbines

2020 ◽  
Author(s):  
Natasha Lopes Gomes ◽  
Rebeka Oliveira Domingues ◽  
Noelle D’Emery Gomes Silva ◽  
Vitor de Moura Lucindo ◽  
Ricardo Artur Sanguinetti Ferreira ◽  
...  
Keyword(s):  
Ceramic Matrix Composites ◽  
Ceramic Matrix ◽  
Ceramic Coatings ◽  
Ceramic Composites ◽  
Industrial Applications ◽  
Air Cooling ◽  
Matrix Composites ◽  
X Ray Diffraction ◽  
Thermomechanical Process ◽  
Barrier Coating

Ceramic matrix composites have attracted the interest of turbine manufacturers for use in coating hot sections because of their higher capacity to withstand high temperatures and because they have a lower requirement for air cooling. One of the most commonly used ceramic coatings is zirconia-yttria. However, its main disadvantage is the inherent fragility of ceramics, which limits the use of these materials in mechanical structures and industrial applications. Ceramics are generally reinforced with the incorporation of additives to reduce their brittleness and increase their mechanical strength and toughness. It is known that La2O3 which are potential source for stabilization of zirconia composites. In this context, ZrO2-Al2O3-La2O3 based ceramic matrix composites were developed for deposition of a thermal barrier coating on the substrate of exhaust nozzles of aerospace turbines varying the content of La2O3 by 5, 7 and 10 wt%. The composites were produced by a thermomechanical process and sintered at 1385 °C. The properties of these composites were studied by X-ray diffraction, relative density, scanning electron microscopy, and Vickers microhardness tests. The results indicate that the composite with 10% La2O3 has great potential for use as ceramic coatings of turbine exhaust nozzles in the aerospace industry.

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