Niobium and Titanium Carbides (MXenes) as Superior Photothermal Supports for CO2 Photocatalysis

ACS Nano ◽  
2021 ◽  
Author(s):  
Zhiyi Wu ◽  
Chaoran Li ◽  
Zhao Li ◽  
Kai Feng ◽  
Mujin Cai ◽  
...  
Keyword(s):  
Titanium Carbides

Anchoring ultrafine RhNi nanoparticles on titanium carbides/manganese oxide as an efficient catalyst for hydrogen generation from hydrous hydrazine

2018 ◽  
Vol 42 (24) ◽  
pp. 20001-20006 ◽  
Author(s):  
Bing Yin ◽  
Qingtao Wang ◽  
Tong Liu ◽  
Guanhui Gao
Keyword(s):  
Manganese Oxide ◽  
Hydrogen Generation ◽  
Efficient Catalyst ◽  
Titanium Carbides

RhNi NPs of 2.8 nm are successfully monodispersed on the bi-support MnOx/MXene surface.

Chemical sputtering yields of titanium carbides

1982 ◽  
Vol 111-112 ◽  
pp. 744-749 ◽  
Author(s):  
R. Yamada ◽  
K. Nakamura ◽  
M. Saidoh
Keyword(s):  
Chemical Sputtering ◽  
Titanium Carbides ◽  
Sputtering Yields

Effect of Aging Heat Treatment at 400-600°C on the Microstructure and Tensile Properties of 15Cr-15Ni Ti-Stabilized Steel Cladding

2021 ◽  
Vol 1016 ◽  
pp. 1071-1078
Author(s):  
Emilien Curtet ◽  
Patrick Olier ◽  
Arnaud Courcelle ◽  
Bouzid Kedjar ◽  
Matthew Bono ◽  
...  
Keyword(s):  
Strain Hardening ◽  
Tensile Properties ◽  
Operating Conditions ◽  
Isothermal Treatment ◽  
Dislocation Network ◽  
Hardening Mechanism ◽  
Sodium Fast Reactor ◽  
Additional Strain ◽  
Titanium Carbides ◽  
Cold Worked

This study investigates the effect of thermal aging on the microstructure and tensile properties of a 15-15Ti austenitic stainless steel in the baseline operating conditions of a sodium fast reactor, in the range between 400°C and 600°C. Samples that were aged at up to 600°C for 1000 hours exhibit no evidence of material recovery. Thus, after aging heat treatments, micro-hardness measurements do not decrease, and TEM analyses do not show any modification of the dislocation network. However, TEM examinations have indicated a new threshold for the precipitation of nanometric titanium carbides after an isothermal treatment at 500°C for about 5000 hours. Concerning the tensile properties, the aged states present a gain both in strength and in ductility compared to the initial cold-worked state. The large gain in ductility is observed for all of the temperatures tested (between 20°C and 400°C) and occurs concomitantly with an increase in the strain hardening rate of the material. One plausible hypothesis to explain this improvement of the mechanical behaviour relies on the nanometric titanium carbides formed during the aging process. These precipitates could act as obstacles that impede the motion of existing dislocations, thereby contributing an additional strain hardening mechanism, which would lead to greater strength and also delay the onset of strain localization.

The Structure, Microhardness and Wear Resistance of Coatings Obtained through Non-Vacuum Electron Beam Cladding of Chromium and Titanium Carbides on Low Carbon Steel

2018 ◽  
Vol 927 ◽  
pp. 13-19 ◽  
Author(s):  
Tatyana A. Krylova ◽  
Konstantin V. Ivanov ◽  
Vladimir E. Ovcharenko
Keyword(s):  
Wear Resistance ◽  
Electron Beam ◽  
Carbon Steel ◽  
Volume Fraction ◽  
Structural Characteristics ◽  
Low Carbon Steel ◽  
Structural Features ◽  
Low Carbon ◽  
Indentation Tests ◽  
Titanium Carbides

An interrelation between structural features, microhardness and wear resistance was studied in the coatings obtained by non-vacuum relativistic electron beam cladding of chromium and titanium carbides powder mixture on low carbon steel. Five coatings differing in the amount of the entered energy were investigated using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), indentation tests and wear resistance measurements. It was found that the concentration of alloying elements both in solid solution and eutectic as well as the volume fraction of eutectic are the main structural characteristics which defines the microhardness of the coatings. The distribution of TiC phase plays a key role in the resistance to wear.

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