ChemInform Abstract: Phase Evolution During the Reactive Sintering of Ternary Al-Ni-Ti Powder Compacts.

ChemInform ◽  
2016 ◽  
Vol 47 (9) ◽  
pp. no-no
Author(s):  
Hossein Sina ◽  
Kumar Babu Surreddi ◽  
Srinivasan Iyengar
Keyword(s):  
Phase Evolution ◽  
Reactive Sintering ◽  
Ti Powder ◽  
Powder Compacts

Phase evolution during the reactive sintering of ternary Al–Ni–Ti powder compacts

2016 ◽  
Vol 661 ◽  
pp. 294-305 ◽  
Author(s):  
Hossein Sina ◽  
Kumar Babu Surreddi ◽  
Srinivasan Iyengar
Keyword(s):  
Phase Evolution ◽  
Reactive Sintering ◽  
Ti Powder ◽  
Powder Compacts

Phase evolution during reactive sintering by viscous flow: Disclosing the inner workings in porcelain stoneware firing

2020 ◽  
Vol 40 (4) ◽  
pp. 1738-1752 ◽  
Author(s):  
Sonia Conte ◽  
Chiara Zanelli ◽  
Matteo Ardit ◽  
Giuseppe Cruciani ◽  
Michele Dondi
Keyword(s):  
Viscous Flow ◽  
Phase Evolution ◽  
Reactive Sintering

scholarly journals Shrinkage mechanism and phase evolution of fine-grain BaTiO3 powder compacts containing 10mol% BaGeO3 prepared via a precursor route

2008 ◽  
Vol 112 (2) ◽  
pp. 531-535 ◽  
Author(s):  
Roberto Köferstein ◽  
Lothar Jäger ◽  
Mandy Zenkner ◽  
Thomas Müller ◽  
Hans-Peter Abicht
Keyword(s):  
Phase Evolution ◽  
Batio3 Powder ◽  
Fine Grain ◽  
Precursor Route ◽  
Powder Compacts

Reactive sintering mechanism of Ti + Mo2C and Ti + VC powder compacts

2010 ◽  
Vol 46 (4) ◽  
pp. 902-909 ◽  
Author(s):  
Yan Bin Liu ◽  
Yong Liu ◽  
Hui Ping Tang ◽  
Bin Wang ◽  
Bin Liu
Keyword(s):  
Reactive Sintering ◽  
Sintering Mechanism ◽  
Powder Compacts

scholarly journals Preparation and Sintering Behaviour of a Fine Grain BaTiO3 Powder containing 10 mol% BaGeO3

2018 ◽  
Author(s):  
Roberto Köferstein
Keyword(s):  
Dielectric Constant ◽  
Specific Surface ◽  
Solid Solutions ◽  
Relative Permittivity ◽  
Phase Evolution ◽  
Batio3 Powder ◽  
Fine Grain ◽  
Rate Controlled ◽  
Sintering Behaviour ◽  
Powder Compacts

The formation of solid solutions of the type [Ba(HOC2H4OH)4][Ti1-xGex(OC2H4O)3] as Ba(Ti1-x/Gex)O3 precursors and the phase evolution during thermaldecomposition of [Ba(HOC2H4OH)4][Ti0.9Ge0.1(OC2H4O)3] (1) are described herein. The 1,2-ethanediolato complex 1 decomposes above 589 °C to a mixture of BaTiO3 and BaGeO3. Aheating rate controlled calcination procedure up to 730 °C leads to a nm-sizedBa(Ti0.9/Ge0.1)O3 powder (1a) with a specific surface area of S = 16.9 m2/g, whereas aconstant heating rate calcination at 1000 °C for 2 h yields a powder (1b) of S = 3.0 m2/g. Theshrinkage and sintering behaviour of the resulting Ba(Ti0.9/Ge0.1)O3 powder compacts incomparison with nm-sized BaTiO3 powder compacts (2a) has been investigated. A 2-stepsintering procedure of nm-sized Ba(Ti0.9/Ge0.1)O3 compacts (1a) leads below 900 °C toceramic bodies with a relative density of ³ 90 %. Furthermore, the cubic ? tetragonal phasetransition temperature has been detected by dilatometry and the temperature dependence ofthe dielectric constant (relative permittivity) has also been measured.

scholarly journals Synthesis and characterization of a nano-scaled barium cerate perovskite powder using starch as polymerization agent

2018 ◽  
Author(s):  
Roberto Köferstein
Keyword(s):  
Mixed Oxide ◽  
Size Range ◽  
Phase Evolution ◽  
Coarse Grained ◽  
Synthesis And Characterization ◽  
Barium Cerate ◽  
Phase Pure ◽  
Sintering Behaviour ◽  
Powder Compacts

The preparation of nano-sized BaCeO3 powder using starch as a polymerizationagent is described herein. Phase evolution during the decomposition process of a (BaCe)-gelwas monitored by XRD. A phase-pure nano-sized BaCeO3 powder was obtained aftercalcining of the (BaCe)-gel at 920 °C. The resulting powder has a specific surface area of 15.4m2/g. TEM investigations reveal particles mainly in the size range of 30 to 65 nm. Theshrinkage and sintering behaviour of resulting powder compacts were studied in comparisonto a coarse-grained mixed-oxide BaCeO3 powder (SBET = 2.1 m2/g). Dilatometricmeasurements show that the beginning of shrinkage of compacts from the nano-sized powder is downshifted by 300 °C compared to mixed-oxide powder. Compacts from the nano-sizedpowder reach a relative density of 91 % after sintering at 1450 °C for 10 h.

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