Thermal analysis of the dissociation of carbonate materials at high heating rate

1988 ◽  
Vol 33 (1) ◽  
pp. 375-377
Author(s):  
O. P. Mchedlov-Petrosyan ◽  
A. P. Nikolaev
Keyword(s):  
Thermal Analysis ◽  
Heating Rate ◽  
High Heating Rate ◽  
High Heating ◽  
Carbonate Materials

Synthesis of Ultra-Fine ZrB2 Powder by Borothermal Reaction under High Heating Rate

2009 ◽  
Vol 66 ◽  
pp. 77-80 ◽  
Author(s):  
Ge Sun ◽  
Hao Wang ◽  
Wei Min Wang ◽  
Yu Cheng Wang ◽  
Zheng Yi Fu
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Heating Rate ◽  
Zirconium Oxychloride ◽  
Reduction Reaction ◽  
Average Crystalline Size ◽  
High Heating Rate ◽  
Heat Treated ◽  
High Heating ◽  
Borothermal Reduction

Ultra-fine zirconium diboride (ZrB2) powders have been synthesized by borothermal reduction reaction, using zirconium oxychloride (ZrOCl2•8H2O) as the precursors of zirconia. The thermodynamic variation in the amorphous ZrO2-B system was studied by thermogravimetric and differential thermal analysis (TG-DTA). The precursors containing amorphous ZrO2 and B were heat-treated under a high heating rate. It is shown that the borothermal reaction can be completed at a relatively low temperature (~950 °C) and short duration (~5 min) under a heating rate of 200 °C/min. The synthesized powders have an average crystalline size of 300 nm with oxygen content less than 2.62 wt%.

High heating rate thermal analysis

1976 ◽  
Vol 14 (1-2) ◽  
pp. 169-181 ◽  
Author(s):  
A.J. Beardell ◽  
J. Staley ◽  
C. Campbell
Keyword(s):  
Thermal Analysis ◽  
Heating Rate ◽  
High Heating Rate ◽  
High Heating

Investigations on High Heating Rate and Precision Calibration of the Thermoelectric Characteristics of the Tool and Work Materials

CIRP Annals ◽  
1983 ◽  
Vol 32 (1) ◽  
pp. 47-51 ◽  
Author(s):  
H.J. Xu ◽  
X.C. Tong ◽  
X.S. Zhao ◽  
Y.Z. Zhang ◽  
J. Peklenik
Keyword(s):  
Heating Rate ◽  
High Heating Rate ◽  
High Heating

Metal oxide nanoparticles formed from solution droplets under high heating rate

2012 ◽  
Vol 43 ◽  
pp. 23-31 ◽  
Author(s):  
Francesco Carbone ◽  
Alberto C. Barone ◽  
Federico Beretta ◽  
Andrea D’Anna
Keyword(s):  
Metal Oxide ◽  
Heating Rate ◽  
Metal Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
High Heating Rate ◽  
High Heating

scholarly journals High heating rate sintering and microstructural evolution assessment using the discrete element method

Open Ceramics ◽  
2021 ◽  
Vol 8 ◽  
pp. 100182
Author(s):  
Mirele Horsth Paiva Teixeira ◽  
Vasyl Skorych ◽  
Rolf Janssen ◽  
Sergio Yesid Gómez González ◽  
Agenor De Noni Jr ◽  
...  
Keyword(s):  
Discrete Element Method ◽  
Heating Rate ◽  
Microstructural Evolution ◽  
Discrete Element ◽  
High Heating Rate ◽  
High Heating ◽  
Element Method

scholarly journals Gasification of High Heating-rate Biomass-derived Chars at Elevated Temperatures

2017 ◽  
Vol 105 ◽  
pp. 642-647
Author(s):  
Tian Li ◽  
Yanqing Niu ◽  
Liang Wang ◽  
Terese Løvås
Keyword(s):  
Heating Rate ◽  
Elevated Temperatures ◽  
High Heating Rate ◽  
High Heating

scholarly journals XPS and Electron Microscopy Study of Oxide-Scale Evolution on Ignition Resistant Mg-3Ca Alloy at Low and High Heating Rates

2020 ◽  
Vol 1 ◽  
Author(s):  
L. A. Villegas-Armenta ◽  
R. A. L. Drew ◽  
M. O. Pekguleryuz
Keyword(s):  
Oxide Scale ◽  
Heating Rate ◽  
Photoelectron Spectroscopy ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
High Heating Rate ◽  
Heating Rates ◽  
Oxide Interface ◽  
Protective Oxide ◽  
High Heating

AbstractEarlier work by the authors suggested that the formation of molten eutectic regions in Mg-Ca binary alloys caused a discrepancy in ignition temperature when different heating rates are used. This effect was observed for alloys where Ca content is greater than 1 wt%. In this work, the effect of two heating rates (25 °C/min and 45 °C/min) on the ignition resistance of Mg-3Ca is evaluated in terms of oxide growth using X-ray Photoelectron Spectroscopy. It is found that the molten eutectic regions develop a thin oxide scale of ~100 nm rich in Ca at either heating rate. The results prove that under the high heating rate, solid intermetallics are oxidized forming CaO nodules at the metal/oxide interface that eventually contribute to the formation of a thick and non-protective oxide scale in the liquid state.

scholarly journals Effects of Heating Rate on Formation of Globular and Acicular Austenite during Reversion from Martensite

Metals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 266 ◽  
Author(s):  
Xianguang Zhang ◽  
Goro Miyamoto ◽  
Yuki Toji ◽  
Tadashi Furuhara
Keyword(s):  
Heating Rate ◽  
High Temperatures ◽  
The Other ◽  
Growth Mode ◽  
High Heating Rate ◽  
Heating Rates ◽  
Other Hand ◽  
High Heating ◽  
Martensite Matrix

The effects of heating rate on the formation of acicular and globular austenite during reversion from martensite in Fe–2Mn–1.5Si–0.3C alloy have been investigated. It was found that a low heating rate enhanced the formation of acicular austenite, while a high heating rate favored the formation of globular austenite. The growth of acicular γ was accompanied by the partitioning of Mn and Si, while the growth of globular γ was partitionless. DICTRA simulation revealed that there was a transition in growth mode from partitioning to partitionless for the globular austenite with an increase in temperature at high heating rate. High heating rates promoted a reversion that occurred at high temperatures, which made the partitionless growth of globular austenite occur more easily. On the other hand, the severer Mn enrichment into austenite at low heating rate caused Mn depletion in the martensite matrix, which decelerated the reversion kinetics in the later stage and suppressed the formation of globular austenite.

Microstructural evolution of nanocrystalline Al2O3 sintered at a high heating rate

2010 ◽  
Vol 36 (2) ◽  
pp. 555-559 ◽  
Author(s):  
Fancheng Meng ◽  
Zhengyi Fu ◽  
Weimin Wang ◽  
Qingjie Zhang
Keyword(s):  
Heating Rate ◽  
Microstructural Evolution ◽  
High Heating Rate ◽  
High Heating

Coal Swelling Model for High Heating Rate Pyrolysis Applications

2011 ◽  
Vol 25 (5) ◽  
pp. 2163-2173 ◽  
Author(s):  
Randy C. Shurtz ◽  
Kolbein K. Kolste ◽  
Thomas H. Fletcher
Keyword(s):  
Heating Rate ◽  
High Heating Rate ◽  
Coal Swelling ◽  
High Heating ◽  
Swelling Model
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