Wear resistance of silicon carbide and nitride based ceramic materials

1993 ◽  
Vol 32 (5) ◽  
pp. 381-385 ◽  
Author(s):  
G. G. Gnesin
Keyword(s):  
Silicon Carbide ◽  
Wear Resistance ◽  
Ceramic Materials

Silicon carbide fibers and whiskers for ceramic matrix composites (review)

2021 ◽  
Vol 87 (8) ◽  
pp. 51-63
Author(s):  
A. M. Shestakov
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
High Temperature ◽  
Composite Materials ◽  
Ceramic Matrix Composites ◽  
Ceramic Materials ◽  
Ceramic Composites ◽  
Silicon Compounds ◽  
Reinforcing Fillers ◽  
Operating Temperatures

An increase the operating temperature range of structural elements and aircraft assemblies is one of the main goals in developing advanced and new models of aerospace equipment to improve their technical characteristics. The most heat-loaded aircraft structures, such as a combustion chamber, high-pressure turbine segments, nozzle flaps with a controlled thrust vector, must have a long service life under conditions of high temperatures, an oxidizing environment, fuel combustion products, and variable mechanical and thermal loads. At the same time, modern Ti and Ni-based superalloys have reached the limits of their operating temperatures. The leading world aircraft manufacturers — General Electric (USA), Rolls-Royce High Temperature Composite Inc. (USA), Snecma Propulsion Solide (France) — actively conduct fundamental research in developing ceramic materials with high (1300 – 1600°C) and ultrahigh (2000 – 2500°C) operating temperatures. However, ceramic materials have a number of shortcomings attributed to the high brittleness and low crack resistance of monolithic ceramics. Moreover, manufacturing of complex configuration and large-sized ceramic parts faces serious difficulties. Nowadays, ceramic composite materials with a high-temperature matrix (e.g., based on ZrC-SiC) and reinforcing filler, an inorganic fiber, (e.g., silicon carbide) appeared most promising for operating temperatures above 1200°C and exhibited enhanced energy efficiency. Ceramic fibers based on silicon compounds possess excellent mechanical properties: the tensile strength more than 2 GPa, modulus of elasticity more than 200 GPa, and thermal resistance at a temperature above 800°C, thus making them an essential reinforcing component in metal and ceramic composites. This review is devoted to silicon carbide core fibers obtained by chemical vapor deposition of silicon carbide onto a tungsten or carbon core, which makes it possible to obtain fibers a 100 – 150 μm in diameter to be used in composites with a metal matrix. The coreless SiC-fibers with a diameter of 10 – 20 μm obtained by molding a polymer precursor from a melt and used mainly in ceramic composites are also considered. A comparative analysis of the phase composition, physical and mechanical properties and thermal-oxidative resistance of fibers obtained by different methods is presented. Whiskers (filamentary crystals) are also considered as reinforcing fillers for composite materials along with their properties and methods of production. The prospects of using different fibers and whiskers as reinforcing fillers for composites are discussed.

scholarly journals Wear Behavior of Graphene-Reinforced Alumina–Silicon Carbide Whisker Nanocomposite

Nanomaterials ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 151 ◽  
Author(s):  
Anton Smirnov ◽  
Pavel Peretyagin ◽  
Nestor Washington Solís Pinargote ◽  
Iosif Gershman ◽  
Jose F. Bartolomé
Keyword(s):  
Silicon Carbide ◽  
Raman Spectroscopy ◽  
Wear Resistance ◽  
Applied Load ◽  
Wear Behavior ◽  
Silicon Carbide Whisker ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Alumina Ball ◽  
Main Factor

In the present work, the tribological properties of graphene-reinforced Al2O3-SiCw ceramic nanocomposites fabricated by spark plasma sintering were studied against alumina ball. Compared with pure ceramic, the wear resistance of these nanocomposites was approximately two times higher regardless of the applied load. It was confirmed by Raman spectroscopy that the main factor for the improvement of the wear resistance of the Al2O3-SiCw/Graphene materials was related to the formation of protecting tribolayer on worn surfaces, which leads to enough lubrication to reduce both the friction coefficient, and wear rate.

The Influence of Silicon Carbide Powders on the Enhancement of the Wear Resistance of Epoxy Resin

2019 ◽  
Vol 813 ◽  
pp. 80-85
Author(s):  
Antonio Formisano ◽  
Massimo Durante ◽  
Antonio Langella
Keyword(s):  
Silicon Carbide ◽  
Wear Resistance ◽  
Epoxy Resin ◽  
Abrasive Wear Resistance ◽  
Particle Sizes ◽  
Wear Properties ◽  
Pin On Disc ◽  
Different Content ◽  
Hard Powder ◽  
Counterface Roughness

In order to improve wear properties of thermosetting resins, potential solutions are the reduction of the adhesion between the counterparts and the improvement of their hardness, stiffness and compressive strength. These goals can be achieved with success by using appropriate inorganic fillers. Concerning this, the present work shows the possibility to increase the abrasive wear resistance of an epoxy resin filled with hard powder. The filling is made by silicon carbide powders in different content and with different particle sizes. Abrasive tests, performed by means of a pin on disc apparatus, highlight that the wear of plain and reinforced resins increases both with the contact pressure between the counterparts and the counterface roughness. Moreover, the wear resistance of the filled resins increases with the increase of content and dimensions of the filling particles.

Ceramic Rolls for Wires, Tubes and Sheets

2005 ◽  
Author(s):  
Andreas Kailer ◽  
Thomas Hollstein
Keyword(s):  
Wear Resistance ◽  
Product Quality ◽  
Field Tests ◽  
Ceramic Materials ◽  
Metal Working

The main reason for using ceramic materials for metal working tools is the significantly higher wear resistance with respect to commonly used steel tools and therefore the possibility to improve the lifetime as well as the product quality. Ceramic rolls were developed and tested in different applications. In this paper the work on the development of the ceramic rolls and the evaluation of several roll types in field tests are summarized.

Complex Design Method of Ceramic Blades and Metal Disk Connection

2019 ◽  
Author(s):  
Dmitry Sapronov ◽  
Michael Mezencev ◽  
Telman Karimbaev ◽  
Sergey Reznik ◽  
Pavel Prosuntsov
Keyword(s):  
Experimental Data ◽  
Silicon Carbide ◽  
Design Method ◽  
Thermal Contact ◽  
Ceramic Materials ◽  
Thermal Contact Conductance ◽  
Test Pieces ◽  
Complex Design ◽  
Complex Approach ◽  
Metal Disk

Abstract This paper presents a complex approach to designing ceramic blades dovetail joints. Two ceramic materials were considered: diamond reinforced silicon carbide and hot pressed silicon nitride (only in contact testing). The model blades were made from diamond reinforced silicon carbide due to its availability and mature technology. Part 1 describes the models of mechanical and thermal contact and contains experimental data on contact strength and thermal contact conductance. Part 2 investigates the effect of stress concentration and scale factor on the fracture of ceramic test pieces. Part 3 proposes a theoretical-experimental method to estimate friction coefficient in a dovetail joint. We also investigated the character of the ceramic blades fracture during the rotor spin-up. Part 4 deals with automating the design process of the ceramic blades dovetail joints using experimental data.

An Investigation of Methods to Improve the Wear Resistance of Gas-Bearing Ceramic Materials

1968 ◽  
Vol 90 (4) ◽  
pp. 829-838
Author(s):  
H. H. Rowe
Keyword(s):  
Wear Resistance ◽  
Chemical Vapor ◽  
High Hardness ◽  
Ceramic Materials ◽  
Gold Plating ◽  
Good Surface ◽  
Irradiation Treatment ◽  
Vapor Deposition Technique ◽  
Good Surface Finish ◽  
Gas Bearing

Ceramic materials, or more particularly aluminum oxides, have found application as a practical gas-bearing material because of the dimensional stability, low coefficient of friction, high hardness, and ability to attain good surface finish that these materials possess. This paper reports on an investigation of a number of methods designed to improve the resistance of aluminum oxide to damage from sliding contact, and hence improve the start-stop life characteristics of gas-bearing assemblies. These methods include heat-treatment, neutron irradiation treatment, gold plating, and coating of alumina surfaces by means of a chemical vapor deposition technique, in order to increase the wear resistance of the material. A brief mention is also made of the effect of machining techniques as they relate to the finish, and hence to the wear resistance, of gas-bearing parts.

TRIBOLOGICAL EVALUATION OF STRUCTURAL CERAMICS UNDER SLIDING FRICTION

2006 ◽  
Vol 20 (25n27) ◽  
pp. 4407-4412 ◽  
Author(s):  
MIN-SOO SUH ◽  
BUP-MIN KIM ◽  
SEOCK-SAM KIM
Keyword(s):  
Silicon Carbide ◽  
Friction And Wear ◽  
Applied Load ◽  
Sliding Friction ◽  
Wear Test ◽  
Ceramic Materials ◽  
Structural Ceramics ◽  
Ceramic Ball ◽  
Disk Material ◽  
Friction And Wear Characteristics

Tribological experiments were conducted on a ball-on-disk, unlubricated, with a speed of V ≈ 140 mm/s , V ≈ 70 mm/s , with an applied load between 20 and 100N, and with different combinations of ceramic materials. A wear test was conducted on disk material zirconia with regard to various ceramic ball materials (zirconia, alumina, silicon carbide and silicon nitride). The results show that the properties of the counter materials cause a difference in friction and wear characteristics.

Template Routes to Non-Oxide Ceramic Nano- and Micro-Structures

2006 ◽  
Vol 921 ◽  
Author(s):  
Upal Kusari ◽  
Zhihao Bao ◽  
Cai Ye ◽  
Gul Ahmad ◽  
Kenneth H Sandhage ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Boron Nitride ◽  
Boron Carbide ◽  
Structural Control ◽  
Large Scale ◽  
Colloidal Silica ◽  
Ceramic Materials ◽  
Oxide Ceramic ◽  
Diatom Frustule ◽  
Length Scales

AbstractNon-oxide ceramic materials like boron carbide and silicon carbide are technologically relevant as advanced high temperature materials, while boron nitride is a thermally robust low-k insulating material with electronic applications. Efficient routes to boron carbide, boron nitride, and silicon carbide ceramic nanostructures have been developed which employ molecular and polymeric precursors, including the boron carbide precursor 6, 6'-bis(decaboranyl)hexane, the boron nitride precursor polyborazylene, and a commercially available silicon carbide precursor allylhydridopolycarbosilane(AHPCS), in conjunction with colloidal silica and biological silica “diatom” templates. Layered submicron-sized ordered void structures with three-dimensional periodicity and tunable length scales were fabricated by the melt infiltration of the precursors into ordered colloidal silica bead templates. Pyrolytic ceramic conversion followed by dissolution of the silica beads by chemical treatment with aqueous HF or NaOH generated highly uniform ceramic structures with thicknesses up to 50μm and ordered voids ranging in diameter from 50-150 nm. Following on earlier work by Sandhage who generated polymer and oxide ceramic structures, vacuum filtration of the ceramic precursor solutions through bioclastic silica diatom frustule templates generated polymer coated replicas of their 3-D micro- and nanostructures. Subsequent pyrolysis and dissolution of the frustules in 48% HF yielded free-standing ceramic structures with fine features on length scales of 60-200 nm. This technique therefore provides a large scale route to nano- and micro structured non-oxide ceramic materials. Structural control of the end products was achieved by changing the concentration of the precursor solution, pore size and/or the frustule template. Characterization by XRD, DRIFT, SEM, TEM and possible uses of these uniform nano- and micro-structured ceramics will be discussed.

Microwave Curing of Silicon Carbide Ceramics from a Polycarbosilane Precursor

1994 ◽  
Vol 347 ◽  
Author(s):  
Tzyy-Heng Alex Shan ◽  
Robert Cozzens
Keyword(s):  
Silicon Carbide ◽  
Thermal Processing ◽  
Ceramic Materials ◽  
Sole Source ◽  
Curing Temperature ◽  
Polymeric Precursor ◽  
Microwave Curing ◽  
Silicon Carbide Ceramic ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

ABSTRACTSilicon carbide ceramic materials have been successfully formed from commercially available polycarbosilane using microwave radiation as the sole source of heat. Conventional thermal processing of the same polymeric precursor was also studied for comparison with microwave processing. Microwave heating enhances crystallinity at much lower curing temperature and within shorter times. Possible explanations for microwave enhanced processing are proposed.

Impact-resistant silicon-carbide-based ceramic materials

2017 ◽  
Vol 43 (8) ◽  
pp. 720-722 ◽  
Author(s):  
S. N. Perevislov ◽  
I. A. Bespalov
Keyword(s):  
Silicon Carbide ◽  
Ceramic Materials
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