Performance of Thick TiN Composite Coating as High Heat Resistant TBC

2005 ◽  
Vol 502 ◽  
pp. 511-516 ◽  
Author(s):  
Akira Kobayashi
Keyword(s):  
Titanium Nitride ◽  
Composite Coating ◽  
Steel Substrate ◽  
High Heat ◽  
Heat Resistant ◽  
Tin Coatings ◽  
Tin Film ◽  
Time Operation ◽  
Coating Characteristics ◽  
Short Time

Titanium nitride (TiN) coating has excellent properties and has been already used in the various field of industry. But TiN film has problems in the formation process: i.e., low deposition rate and poor thickness of the film. TiN thick coatings can be formed by means of the gas tunnel type plasma reactive spraying in a short time operation. In this study, the fundamental characteristics of this method were investigated by measuring the properties of the titanium nitride (TiN) coatings formed on the traversed stainless steel substrate. Consequently, TiN coatings of 200µm thickness were obtained at P=27kW, within t=5s, and some coating characteristics which depend on the spraying distance, the environmental gas, traverse number etc. were clarified. And the performance of TiN thick composite coating was discussed as a heat resistant TBC.

CRONIFER II EXTRA, CRONIFER 45, CRONIFER III EXTRA, CRONIFER IV EXTRA

Alloy Digest ◽  
1992 ◽  
Vol 41 (6) ◽  
Keyword(s):  
Physical Properties ◽  
Tensile Properties ◽  
High Heat ◽  
Heat Resistant

Abstract CRONIFER II EXTRA, 45, III EXTRA AND IV EXTRA alloys are high heat resistant alloys, some with resistance to green rot and hardening environments. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. Filing Code: Ni-405. Producer or source: VDM Technologies Corporation.

High Heat-Resistant and Degradable Polybenzoxazines with a Diacetal Structure

2021 ◽  
Author(s):  
Peng Wang ◽  
Shuai Zhang ◽  
Wanghezi Xu ◽  
Tianming Xiao ◽  
Qichao Ran
Keyword(s):  
High Heat ◽  
Heat Resistant

scholarly journals Effects of Pre- and Post-Carburizing Surface Modification on the Tribological and Adhesion Properties of Heat-Resistant KHR 45A Steel for Cracking Tubes

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3658
Author(s):  
Auezhan Amanov ◽  
Joo-Hyun Choi ◽  
Young-Sik Pyun
Keyword(s):  
Surface Modification ◽  
Surface Treatment ◽  
Steel Substrate ◽  
Heat Exposure ◽  
Scratch Resistance ◽  
Adhesion Properties ◽  
Heat Resistant ◽  
Adhesion Behavior ◽  
Steel Substrates ◽  
Carburizing Process

In this study, the effects of ultrasonic nanocrystal surface modification (UNSM) technology on the tribological properties and scratch-induced adhesion behavior of a heat-resistant KHR 45A steel cracking tube, which is used for the pyrolysis process, were investigated. The main objective of this study is to investigate the effects of pre- and post-carburizing UNSM treatment on the tribological and adhesion performances of carburized domestic KHR 45A (A) steel and to compare the results with the existing carburized Kubota-made KHR 45A steel (B). A carburizing process was carried out on the polished and UNSM-treated KHR 45A steel substrates, which were cut out from the cracking tube, at 300 °C heat exposure for 300 h. The thickness of the carburizing layer was about 10 μm. UNSM technology was applied as pre- and post-carburizing surface treatment; both reduced the friction coefficient and wear rate compared to that of the carburized KHR 45A steel substrate. It was also found that the application of UNSM technology increased the critical load, which implies the improvement of adhesion behavior between the carburizing layer and the KHR steel substrate. The application of UNSM technology as pre- and post-carburizing surface treatment could help replace carburized Kubota-made KHR 45A steel (B) thanks to the improved tribological performance, enhanced scratch resistance, load bearing capacity, and adhesion of domestic KHR 45A (A) steel.

scholarly journals Molecular Physiological Characterization of a High Heat Resistant Spore Forming Bacillus subtilis Food Isolate

2021 ◽  
Vol 9 (3) ◽  
pp. 667
Author(s):  
Zhiwei Tu ◽  
Peter Setlow ◽  
Stanley Brul ◽  
Gertjan Kramer
Keyword(s):  
Bacillus Subtilis ◽  
Heat Resistance ◽  
Dipicolinic Acid ◽  
Laboratory Strain ◽  
High Heat ◽  
High Heat Resistance ◽  
Vegetative Cells ◽  
Heat Resistant ◽  
Food Isolate ◽  
Wet Heat

Bacterial endospores (spores) are among the most resistant living forms on earth. Spores of Bacillus subtilis A163 show extremely high resistance to wet heat compared to spores of laboratory strains. In this study, we found that spores of B. subtilis A163 were indeed very wet heat resistant and released dipicolinic acid (DPA) very slowly during heat treatment. We also determined the proteome of vegetative cells and spores of B. subtilis A163 and the differences in these proteomes from those of the laboratory strain PY79, spores of which are much less heat resistant. This proteomic characterization identified 2011 proteins in spores and 1901 proteins in vegetative cells of B. subtilis A163. Surprisingly, spore morphogenic protein SpoVM had no homologs in B. subtilis A163. Comparing protein expression between these two strains uncovered 108 proteins that were differentially present in spores and 93 proteins differentially present in cells. In addition, five of the seven proteins on an operon in strain A163, which is thought to be primarily responsible for this strain’s spores high heat resistance, were also identified. These findings reveal proteomic differences of the two strains exhibiting different resistance to heat and form a basis for further mechanistic analysis of the high heat resistance of B. subtilis A163 spores.

scholarly journals A 31 mW, 280 fs passively mode-locked fiber soliton laser using a high heat-resistant SWNT/P3HT saturable absorber coated with siloxane

2012 ◽  
Vol 20 (21) ◽  
pp. 23659 ◽  
Author(s):  
Takato Ono ◽  
Yuichiro Hori ◽  
Masato Yoshida ◽  
Toshihiko Hirooka ◽  
Masataka Nakazawa ◽  
...  
Keyword(s):  
Saturable Absorber ◽  
High Heat ◽  
Heat Resistant

scholarly journals Design high heat-resistant stereocomplex poly(lactide acid) by cross-linking and plasticizing

2017 ◽  
Vol 37 (7) ◽  
pp. 2429-2435 ◽  
Author(s):  
Li Cui ◽  
Yahui Wang ◽  
Rundong Zhang ◽  
Yun Liu
Keyword(s):  
High Heat ◽  
Cross Linking ◽  
Heat Resistant

Morphology and Mechanical Properties of a Composite Coating by Electrostatic Dry Spray Method

2021 ◽  
Vol 886 ◽  
pp. 168-174
Author(s):  
Mohanad N. Al-Shroofy ◽  
Hanna A. Al-Kaisy ◽  
Rabab Chalaby
Keyword(s):  
Composite Coating ◽  
Steel Substrate ◽  
Low Carbon Steel ◽  
Spray Coating ◽  
Manufacturing Cost ◽  
Low Carbon ◽  
Spray Method ◽  
Coating Layers ◽  
Al Powder ◽  
Electrostatic Spray

Powder spray coating was used for many applications such as paint decoration and protection against corrosive environments. The electrostatic spray method is used to lower the manufacturing cost and the environmental effect during the production process. It is done by electrostatic device and spray gun to create a layer on the substrate to play a protective role. Different dry powders were mixed to form a composite mixture consisted of Al2O3 and SiC or ZrSiO4 with Al powder as a binder. The powders mixture was deposited by electrostatic spray technique with a high voltage of 15 kV on a low carbon steel substrate of (40 x 10 x 4) mm in dimensions. Two groups of mixtures were used to form the coating layers. Powders of Al2O3 with (20 and 40) weight percent (wt%) of SiC as the first group and (20 and 40) wt% of ZrSiO4 as the second group were used. 5 wt% of Al powder was added as a binder, and the samples were heat treated at 900 C° for 2 hours. A detailed characterization of the composite coating layers was performed using XRD, SEM, and EDX, as well as, micro-hardness measurements. The obtained surface composite layers were smooth and having good particle distribution which leads to enhance roughness values (Ra). Furthermore, the hardness increased with increasing the amount of carbide and zirconia, and the obtained layers show no presence of defects or cracks.

ChemInform Abstract: Synthesis, Characterization and Application of Some Nanosized Mixed Metal Oxides as High Heat Resistant Pigments: Ca2CuO3, Ca3Co2O6, and NiSb2O6.

ChemInform ◽  
2012 ◽  
Vol 43 (41) ◽  
pp. no-no
Author(s):  
Osama A. Fouad ◽  
Ali M. Hassan ◽  
Hamada Abd El-Wahab ◽  
Adel Mohy Eldin ◽  
Abdel-Rahman M. Naser ◽  
...  
Keyword(s):  
Metal Oxides ◽  
High Heat ◽  
Mixed Metal Oxides ◽  
Mixed Metal ◽  
Heat Resistant
Sign in / Sign up

Export Citation Format

Share Document