full text of titanium and zirconium carbide coatings on

Preparation and corrosion resistance of

This paper aims to develop a chromium‐free chemical conversion coating with good corrosion resistance. A novel chemical conversion coating was prepared on 6061 aluminum alloy by dipping in the treatment solution containing titanium/zirconium based‐ions and

THE THERMAL EXPANSION COEFFICIENTS OF

Measurements are preserted of the thermal expansion of five titanium carbide type cermets from 68 to 1800 deg F. These cermets are designated by Kennametal, Inc., as K 138A, K 150A, K 151A, K 152B, and K 162B. They contain from 64 to 80 weight percent

Correlation between three

1997/7/1The tribological characteristics of the TiN, TiC and Ti(C,N) coatings related to three-body abrasions were studied in this work. Eight types of coating films were deposited by means of the cathodic arc ion plating process by varying the mass flow rates of nitrogen and acetylene gases during the coating processes. The lower specimens were coated by the titanium film as the underlayer and the

Influence of Oxidation Behavior of Feedstock on

Plasma spray is one of the suitable technologies to deposit carbide coatings with high melting point, such as ZrC. However, in the spray processes performed under atmosphere, oxidation of the carbide powder is inevitable. To investigate the influence of the oxidation behavior of feedstock on microstructure and ablation resistance of the deposited coating, ZrC coatings were prepared by

Zirconium carbide

Hafnium-free zirconium carbide and niobium carbide can be used as refractory coatings in nuclear reactors. Because of a low neutron absorption cross-section and weak damage sensitivity under irradiation, it finds use as the coating of uranium dioxide and thorium dioxide particles of nuclear fuel .

Characterization of hard nitride and carbide titanium and

Enable full ADS view Abstract Citations (8) References Co-Reads Similar Papers Volume Content Graphics Metrics NASA/ADS Characterization of hard nitride and carbide titanium and zirconium coatings on high-speed steel cutting tool Fenske, G.;

Work function of the double carbide of titanium and

Abstract The temperature dependence of the work function of the work function of TiC-ZrC was measured in the range 1300-1900degreeK after the adsorption of N/sub 2/ and O/sub 2/. Nechiporenko, E P, Kirillov, V S, and Safonov, V I. Work function of the double carbide of titanium and zirconium in a vacuum of 10/sup -9/ to 10/sup -5/ mm Hg as a function of the presence of N/sub 2/ and O/sub 2/.

THE THERMAL EXPANSION COEFFICIENTS OF

Optical Properties Of Titanium And Zirconium

The reflectivity spectra of sputtered zirconium and titanium nitride, carbide and carbonitride thin films have been studied. The data are interpreted by means of their electronic structure in a Drude-Lorentz model. The influence of the nature of the metal and of the non

Chemical vapor deposition of titanium, zirconium, and

1991/11/1Chemical vapor deposition of titanium, zirconium, and hafnium nitride thin films Renaud Fix, Roy G. Gordon, and David M. Hoffman Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML These

Potential of Coatings in Total Hip Replacement : Clinical

2018/5/9rent kinds of treatments or coatings may improve total hip replacements considerably. The most studied surface treatments include ion implantation and methods to control surface topography, such as grit or sand blasting or plasma treatments. Among the large variety of coatings, hydroxyapatite, titanium oxide and nitride, zirconium oxide, pyrolytic carbon, and diamondlike carbon coatings have

Coating Services, Tool Coating

Guhring's coatings research department has developed a new nano multi-layer coating for nickel base materials and hardened materials that require high surface hardness coatings. Called nano-Si, this TiAlSiN (titanium aluminum silicon nitride) based coating is designed to yield similar performance to diamondlike coatings without the restrictions on the host base material substrate.

Zirconium diboride

Zirconium diboride (ZrB 2) is a highly covalent refractory ceramic material with a hexagonal crystal structure.ZrB 2 is an ultra high temperature ceramic (UHTC) with a melting point of 3246 C. This along with its relatively low density of ~6.09 g/cm 3 (measured density may be higher due to hafnium impurities) and good high temperature strength makes it a candidate for high temperature

Production of conversion oxide

2006/10/6We consider the possibilities of surface hardening of zirconium and titanium alloys with conversion oxide-ceramic coatings. These coatings have been produced by the method of plasma-electrolytic treatment in alkaline solutions. We have established that the plasma temperature in discharge spark channels reaches (6–9) 103 K. The thickness of the coatings is 100 to 120 and 30 to 40 m,

Preparation and corrosion resistance of

2019/10/3This paper aims to develop a chromium‐free chemical conversion coating with good corrosion resistance. A novel chemical conversion coating was prepared on 6061 aluminum alloy by dipping in the treatment solution containing titanium/zirconium based‐ions and

Biocompatibility and antibacterial properties of zirconium

Improving soft tissue attachment and reducing bacterial colonization on titanium abutments are key factors for the long-term maintenance of healthy soft and hard peri-implant tissues. This in vitro study was conducted to compare the biocompatibility and antibacterial

Synthesis of Ceramics Based on Titanium, Zirconium, and

2020/2/26Abstract A review of the most common synthesis methods of highly dispersed powders of metal nitrides of titanium subgroup is given. It is shown that the dispersion and scattering of particle size, powder form, and composition of their surface determine the results of the sintering. The comparative evaluation of advantages and limitations of the realized processes based on different approaches

Surface Modifications and Their Effects on Titanium

This review covers several basic methodologies of surface treatment and their effects on titanium (Ti) implants. The importance of each treatment and its effects will be discussed in detail in order to compare their effectiveness in promoting osseointegration. Published literature for the last 18 years was selected with the use of keywords like titanium dental implant, surface roughness

Low‐Temperature Preparation of Titanium Carbide

2008/1/17Titanium carbide (TiC)‐coated graphite for refractory castable applications was prepared via reacting titanium metal powder (∼45 μm) and natural graphite flakes (100–300 μm) for 5 h at 950 C in a KCl‐based salt in Ar atmosphere. TiC coatings formed on graphite

Performance of coated carbide tools when grooving wood

2001/4/1This paper presents the performance of coated carbide tools when grooving various density hardboards and wood-chip cement boards. Work materials of low density (about 0.8g/cm3) and high density (about 1.2g/cm3) were tested. The coating materials studied were chromium carbide, titanium carbonitride, and titanium carbide, which were synthesized on P30 carbide substrate using a

Surface Modifications and Their Effects on Titanium

Full text of Titanium and zirconium carbide coatings on

Full text of Titanium and zirconium carbide coatings on graphite See other formats % I ft, NASA rr F-9661 S TITANIUM AND ZLCONIUM CARBIDE COATINGS ON GRAPHITE A. L. Burykina and T, M. Yevtushok r4bfe-l6 l^^ lACCESSION NUMBERI CODE

Hard wearing Decorative Coatings

Titanium boride, 99.5% 99.8% Tungsten Carbide Zirconium, 99.2% Hard wearing coatings for: For Increased life time, higher productivity finishing for cutting tools, punching and forming tools. Reduced coefficient of friction and reduced wear, tribological coatings

Formation and properties of micro

Wollastonite-calcium phosphate (W-CaP) coatings were deposited by the micro-arc oxidation (MAO) method on titanium (Ti) and Zr-1 wt % Nb (Zr-1Nb) alloy. The voltage of 150-300 V generated the MAO process with initial current amplitudes of 150-550 A and 100-350 A for Ti and Zr-1Nb substrates, respectively. Thin W-CaP coatings with the thickness of 10-11 m were formed on Ti and Zr-1Nb

Zirconia Dental Implants: A Literature Review

2011/6/1The full text of articles was obtained where possible. If it was not possible to obtain a full text, the electronically available abstracts were collected. Thus, the inclusion criteria for articles were as follows: (1) Articles were related to zirconia dental implants, and (2) abstracts were obtained when the full texts could not be obtained.

Small Cluster Models of the Surface Electronic Structure

2003/10/29Density functional theory (DFT) calculations on stoichiometric, high-symmetry clusters have been performed to model the (100) and (111) surface electronic structure and bonding properties of titanium carbide (TiC), vanadium carbide (VC), and titanium nitride (TiN). The interactions of ideal surface sites on these clusters with three adsorbates, carbon monoxide, ammonia, and the oxygen

Depth profile analysis of various titanium based coatings

Depth profile analysis of various titanium based coatings on steel and tungsten carbide using laser ablation inductively coupled plasma –"time of flight" mass spectrometry Davide Bleiner 1, Alexei Plotnikov 2, Carla Vogt 2, Klaus Wetzig 2 D. Gnther 1 volume

Characterization of hard nitride and carbide titanium and

1998/6/4Hard nitride and carbide coatings of titanium and zirconium deposited by reactive evaporation and reactive sputtering techniques were characterized by electron microscopy and Auger spectroscopy to determine the effect of coating process on coating composition and microstructure.

Zirconium Nitride Coating Reduced Staphylococcus

tion, biocompatibility, and adherence of bacteria to the surface, which is the first step in biofilm formation. The aim of this experimental study was to investigate the effect of a high tribologic-resistant 2.5-m zirconium nitride top coat on an antiallergic multilayer ceramic-covered cobalt-chromium-molybdenum surface on the formation of S. epidermidis biofilm compared with other commonly

Thermal Conductivity of Titanium Carbide, Zirconium

The thermal conductivity of titanium carbide, zirconium carbide, and titanium nitride was measured by a variety of techniques in the temperature range 200 to 2000 C. The titanium nitride results are a factor of four higher than the previously published values at 1000C and show a positive temperature coefficient for the thermal conductivity rather than the negative coefficient previously