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181 results on '"Yang, J.R."'

24. Molybdenum alloying in high-performance flat-rolled steel grades

Author

Uranga-Zuaznabar, P. (Peio), Shang, C.J. (Cheng-Jia), Senuma, T. (Takehide), Yang, J.R. (Jer-Ren), Guo, A.M. (Ai-Min), and Mohrbacher, H. (Hardy)

Subjects
Quench & tempering, HSLA steel, Press hardening, Direct quenching, Precipitation, Quenching & partitioning
Abstract

Considerable progress in developing flat-rolled steel grades has been made by the Chinese steel industry over the recent two decades. The increasing demand for high-performance products to be used in infrastructural projects as well as in production of consumer and capital goods has been driving this development until today. The installation of state-of-the-art steel making and rolling facilities has provided the possibility of processing the most advanced steel grades. The production of high-performance steel grades relies on specific alloying elements of which molybdenum is one of the most powerful. China is nearly self-sufficient in molybdenum supplies. This paper highlights the potential and advantages of molybdenum alloying over the entire range of flat-rolled steel products. Specific aspects of steel property improvement with respect to particular applications are indicated.

Published
2020

29. Microphotoluminescence mapping on CdZnTe: Zn distribution

Author

Li, Z.F., Lu, W., Huang, G.S., Yang, J.R., He, L., and Shen, S.C.

Subjects
Semiconductors -- Research, Physics
Abstract

CdZnTe compound semiconductor was investigated to observe microphotoluminescence mapping.

Published
2001

30. Growth of highly transparent nanocrystalline diamond films and a spectroscopic study of the growth

Author

Chen, L.C., Lin, S.T., Kichambare, P.D., Chen, K.H., Wu, J.-J., and Yang, J.R.

Subjects
Diamond films -- Observations, Methane -- Spectra, Methane -- Optical properties, Physics
Abstract

The effects of both the grain size of diamond powder and methane fraction in the source gas over a wide range on the microstructure and the optical transmittance of the films is investigated. Optical emission spectroscopy is employed to monitor the plasma chemistry, from which possible growth species for the films are discussed.

Published
2001

32. Microstructural and electrical properties of epitaxial PtSi/p-Si(100) co-deposited under ultrahigh vacuum

Author

Wang, L.P., Yang, J.R., and Hwang, J.

Subjects
Epitaxy -- Research, Semiconductors -- Research, Electrons -- Diffraction, Moire method -- Usage, Physics
Abstract

A base pressure of 10 to the power -10 Torr and a temperature of 450 degrees centigrade is involved in the fabrication of epitaxial PtSi/p-Si(100) contacts in a dual electron gun chamber by co-deposition of Si and Pt on p-Si(100). Electron diffraction patterns reveal six kinds of epitaxial modes in the film. The Moire fringe image shows that the PtSi grains have an average grain size of 100 kelvin. Interface atomic arrangement causes variations in the Schottky barrier height between the epitaxial and polycrystalline films.

Published
1993

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