Results 41 to 50 of about 344,482 (299)

One-Step Microwave Synthesis of New Hybrid Phosphor (CSSC) for White Light-Emitting Diodes

Ceramics, 2023
The possibility of synthesizing a new hybrid phosphor CSSC (mixture of 0.5 CaSrSiO4:Eu2+: 0.29 Ca6Sr4Si6O21Cl2:Eu2+: 0.21 Ca10Si6O21Cl2:Eu2+) using a one-step microwave synthesis method is demonstrated.
Maxim Sychov, Mariia Keskinova, Andrey Dolgin, Igor Turkin, Kazuhiko Hara, Hiroko Kominami   +5 more
doaj   +1 more source

Variations of the 10 um Silicate Features in the Actively Accreting T Tauri Stars: DG Tau and XZ Tau

, 2009
Using the Infrared Spectrograph aboard the Spitzer Space Telescope, we observed multiple epochs of 11 actively accreting T Tauri stars in the nearby Taurus-Auriga star forming region. In total, 88 low-resolution mid-infrared spectra were collected over 1.
Bary, Calvet, Carrasco-González, Dullemond, Espaillat, Espaillat, Forrest, Furlan, Haas, Honda, Jarron M. Leisenring, Jeffrey S. Bary, Kessler-Silacci, Kessler-Silacci, Leisenring, Michael F. Skrutskie, Muzerolle, Muzerolle, Muzerolle, Nguyen, Sargent, Sargent, Sitko, Tambovtseva, Taylor, Turner, Watson, Watson, Wooden, Woodward   +29 more
core   +1 more source

C2D Spitzer-IRS spectra of disks around T Tauri stars: I. Silicate emission and grain growth [PDF]

, 2005
Infrared ~5--35 um spectra for 40 solar-mass T Tauri stars and 7 intermediate-mass Herbig Ae stars with circumstellar disks were obtained using the Spitzer Space Telescope as part of the c2d IRS survey.
A. C. Adwin Boogert, Alcala J. M., Appenzeller I., Bouvier J., Claudia Knez, Cornelis P. Dullemond, Dorschner J., Dunkin S. K., Ewine F. van Dishoeck, Fernandez M., Finkenzeller U., Fred Lahuis, Gail H.-P., Geoffrey A. Blake, Gomez de Castro A. I., Jacqueline Kessler‐Silacci, Jager C., Jean‐Charles Augereau, Jes K. Jorgensen, Joanna Brown, Klaus M. Pontoppidan, Lawson W. A., Neal J. Evans II, Reipurth B., Sahu M., Servoin J. L., The P. S., Toon O. B., van den Ancker M. E., van den Ancker M. E., Vincent Geers, Waelkens C., Zubko V. G.   +32 more
core   +3 more sources

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source

Near- to mid-infrared spectroscopy of the heavily obscured AGN LEDA 1712304 with AKARI/IRC

, 2019
Context. Although heavily obscured active galactic nuclei (AGNs) have been found by many observational studies, the properties of the surrounding dust are poorly understood. Using AKARI/IRC spectroscopy, we discover a new sample of a heavily obscured AGN
Kaneda, H., Kobayashi, H., Kokusho, T., Morihana, K., Oyabu, S., Toba, Y., Tsuchikawa, T., Yamagishi, M.   +7 more
core   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Simultaneous spectrophotometric determination of phosphate and silicate by using partial least squares method [PDF]

شیمی کاربردی روز, 2009
A very sensitive, simple and selective spectrophotometric method for simultaneous determination of phosphate and silicate based on formation of phospho- and silicomolybdenum blue complexes in the presence of ascorbic acid is described.
Mehdi Nekoei, Majid Mohammadhossein, Hasan Bagheri   +2 more
doaj   +1 more source

Raman spectroscopy, a non-destructive solution to the study of glass and its alteration [PDF]

, 2008
This paper presents the potential of Raman spectroscopy, a non-destructive technique which can be applied in-situ, for the analyses of glass and their alteration. Recent analytical developments are summarised for different glass composition and practical
Bouquillon, A, Etcheverry, M-P, Neff, D, Pagès-Camagna, S, Robinet, L, Tate, Jim, Verney-Carron, A   +6 more
core  

Fracture Toughness of Silicate Glasses: Insights from Molecular Dynamics Simulations

, 2015
Understanding, predicting and eventually improving the resistance to fracture of silicate materials is of primary importance to design new glasses that would be tougher, while retaining their transparency. However, the atomic mechanism of the fracture in
Bauchy, Mathieu, Lee, Young Jea, Wang, Bu, Yu, Yingtian   +3 more
core   +2 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source