Effect of the carbon content in hard alloys on the rate of growth of coatings of titanium carbide and durability of tools with these coatings. I. Examination of the role of carbon of hard alloys in depositing coatings of titanium carbide

1989 ◽  
Vol 28 (12) ◽  
pp. 933-937
Author(s):  
G. L. Platonov ◽  
R. F. Cheburaeva ◽  
V. S. Toropchenov ◽  
S. A. Kiryukhin ◽  
I. Yu. Konyashin ◽  
...  
Keyword(s):  
Titanium Carbide ◽  
Carbon Content ◽  
Hard Alloys ◽  
Rate Of Growth

Role of the phase composition of tungsten containing hard alloys in the formation of a layer of titanium carbide in gas titanizing

1989 ◽  
Vol 28 (7) ◽  
pp. 574-578
Author(s):  
B. V. Zakharov ◽  
A. N. Minkevich ◽  
D. V. Pikunov ◽  
�. R. Ton� ◽  
E. D. Argasova
Keyword(s):  
Phase Composition ◽  
Titanium Carbide ◽  
Hard Alloys

Economic Growth: New Problems and New Risks

2006 ◽  
pp. 20-37 ◽  
Author(s):  
M. Ershov
Keyword(s):  
Economic Growth ◽  
Foreign Exchange ◽  
Driving Force ◽  
Structural Changes ◽  
Rate Of Growth

The economic growth, which is underway in Russia, raises new questions to be addressed. How to improve the quality of growth, increasing the role of new competitive sectors and transforming them into the driving force of growth? How can progressive structural changes be implemented without hampering the rate of growth in general? What are the main external and internal risks, which may undermine positive trends of development? The author looks upon financial, monetary and foreign exchange aspects of the problem and comes up with some suggestions on how to make growth more competitive and sustainable.

Tungsten-free hard alloys based on titanium carbide

2000 ◽  
Vol 36 (1) ◽  
pp. 24-27 ◽  
Author(s):  
Yu. V. Levinskii ◽  
A. P. Petrov
Keyword(s):  
Titanium Carbide ◽  
Hard Alloys

scholarly journals Исследование формирования омических контактов Au/Mo/Ti с пониженным сопротивлением к эпитаксиальным слоям алмаза p-типа

2019 ◽  
Vol 89 (12) ◽  
pp. 1923
Author(s):  
М.Н. Дроздов ◽  
Е.В. Демидов ◽  
Ю.Н. Дроздов ◽  
С.А. Краев ◽  
В.И. Шашкин ◽  
...  
Keyword(s):  
Titanium Carbide ◽  
Contact Resistance ◽  
Ohmic Contacts ◽  
Contact Region ◽  
Effective Diffusion ◽  
Protective Properties ◽  
High Adhesion ◽  
Heavy Doping ◽  
P Type

The formation of ohmic Au/Mo/Ti contacts to epitaxial p-type diamond films is studied. The effect of annealing on the electrical and structural properties of contacts has been investigated. It was shown that during rapid thermal annealing, the outer layer of gold protects the contact system from oxidation up to a temperature of 850°C, unlike the simplified Au/Ti system, which is more common in modern works. In Au/Ti structures without a Mo layer after high-temperature annealing, effective diffusion of titanium into the gold layer occurs, which reduces its protective properties and accelerates the diffusion of oxygen to the boundary with the diamond. Oxidation of the Ti/C contact region blocks the formation of a conductive layer of titanium carbide with high adhesion at the border with diamond. The role of various factors in reducing the contact resistance is compared: annealing for the formation of titanium carbide, heavy doping of diamond with boron atoms, and crystalline perfection of epitaxial diamond substrates. For doped epitaxial films grown on single-sector quality substrates, non-annealed ohmic contacts with a record contact resistance of 4•10<-7> Ω•cm<2> were obtained.

The effect of carbon content on the microstructure of hydrogen-free physical vapour deposited titanium carbide films

2009 ◽  
Vol 518 (1) ◽  
pp. 71-76 ◽  
Author(s):  
E. Coronel ◽  
U. Wiklund ◽  
E. Olsson
Keyword(s):  
Titanium Carbide ◽  
Carbon Content

HUMUS FRACTION RATIOS AS A MEANS OF DISCRIMINATING BETWEEN HORIZON TYPES

1980 ◽  
Vol 60 (2) ◽  
pp. 219-229 ◽  
Author(s):  
L. E. LOWE
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Carbon Content ◽  
Fulvic Acid ◽  
Soil Classification ◽  
Acid Fraction ◽  
Humus Fraction ◽  
Wide Range ◽  
Fraction Distribution

Humus fraction distribution in a wide range of horizon samples was examined by measuring carbon content in humic acid (Ch), in fulvic acid (Cf) and in the strongly colored polyphenolic component of the fulvic acid fraction (Ca). Fraction distribution was described by the ratios Ch/Cf and Ca/Cf. It was concluded that humus fraction ratios were related to horizon types as used in the Canadian System of Soil Classification, and were effective in discriminating between certain horizon types, particularly between Luvisolic Bt and Podzolic Bf. The results also suggested that humus fraction ratios may be effective in separating distinct sub-populations within Ah horizons and Bf horizons in general, based on qualitative differences in organic matter present. Aspects of the role of humus fractions in soil genesis are discussed.

Government policy and the rise of a national shipping industry: Korea’s experience, 1967–1999

2019 ◽  
Vol 31 (2) ◽  
pp. 285-307
Author(s):  
S. June Kim
Keyword(s):  
Government Policy ◽  
State Policies ◽  
Final Part ◽  
Shipping Industry ◽  
Role Of Government ◽  
Causal Factors ◽  
Rate Of Growth ◽  
The Government ◽  
Role Of The Government

In 2017, Koreans controlled 1,656 vessels with an aggregate tonnage of 80,976,874 deadweight (dwt), placing Korea as the world’s seventh largest shipowning country. Given that Korean-owned tonnage stood at just 1.3m dwt in 1970, this represented a remarkable rate of growth over less than half a century. This article focuses on the years from 1967 to 1999 and aims to prove that government policy was one of the key causal factors in the rapid increase in Korean shipping. The paper is organised into four main parts. In the first section, the role of the government in the development of the economy is assessed, while Section 2 focuses on state policies designed to promote the shipping industry in Korea. Section 3 highlights the rise of Korean shipping from 1967 to 1999, and the final part considers the wider implications of the role of government policy in the development of the shipping industry.

The role of pulverized coal drying temperature in fly ash carbon content and slagging of a tangentially coal-fired boiler

Fuel ◽  
2019 ◽  
Vol 257 ◽  
pp. 115951 ◽  
Author(s):  
Xin Liao ◽  
Qi Zhang ◽  
Wenhu Yang ◽  
Zhongzhu Qiu ◽  
Ruitang Guo ◽  
...  
Keyword(s):  
Fly Ash ◽  
Carbon Content ◽  
Pulverized Coal ◽  
Drying Temperature ◽  
Coal Drying
Sign in / Sign up

Export Citation Format

Share Document