Authors:J. Delben, A. Delben, K. Miazato, S. Oliveira, and Y. Messaddeq
New fluorindate glass compositions have been investigated in order to improve optical transmission as well as thermal properties.
Chloride inclusion extends transmission of a fluoride matrix to longer wavelength in infrared region. In the present work
thermal parameters of an IZnBS composition, based on InF3, ZnF2, BaF2 and SrF2, with various amounts of alkaline chlorides were investigated by differential scanning calorimetry. The chloride presence
decreased all characteristic temperatures and increased both thermal stability and glass forming ability up to 10% of MCl
content, where M=Li, Na, K and Rb. The presence of NaCl promoted glass phase separation. For samples containing same concentration of NaCl,
this effect is accentuated for increasing the contents of SrF2.
A study was made of the thermal stability of epoxy compounds which were unfilled or contained metallic fillers such as aluminium dust, aluminium flakes, powdered bronze, powdered brass and silver flakes. The properties of the compounds were modified by the use of various hardeners.
derivatives in the chosen models ensure the system's stability. The proposed control law is characterized by several adjustable parameters. The adaptation mechanism used to adjust the parameters is a combination between the MIT and Lyapunov stability methods
groundwater- and river water-level variations (e.g., Schnellmann et al. 2010 ; Mentes 2017b ) on river bank stability. However, to date, the direct effect of hydrological processes on movements and deformations of high river banks (e.g., Uchimura et
Authors:Wantinee Viratyaporn and Richard L. Lehman
properties, particularly its low toughness and poor thermal stability. In the polymerization process the termination reaction of propagating chains can occur either through disproportionation or combination reactions depending on the stability of the
Authors:Jiří Kučerík, Jan David, Martin Weiter, Martin Vala, Jan Vyňuchal, Imad Ouzzane, and Ota Salyk
techniques. Recently, those techniques were used in order to study the stability of DPP N -alkyl derivatives and polymorphism occurring upon fast and moderate cooling of the material [ 8 ].
More recently, the thermogravimetrical analysis of DPP
Authors:Shinn-Gwo Hong, Tsung-Kai Gau, and Shih-Che Huang
– 9 ]. The impressing biodegradation and biocompatibility properties of PHB have resulted in many potential applications of PHB in the industry especially in the medical field, nonetheless, the inherent brittleness and inferior thermal stability (in
Authors:Hieronim Maciejewski, Izabela Dąbek, Ryszard Fiedorow, Michał Dutkiewicz, and Mariusz Majchrzak
resistance and thermo-oxidative stability [ 17 , 18 ]. The high reactivity of the oxirane ring of epoxides makes it possible to obtain a wide range of compounds or organic–inorganic hybrid polymers. Siloxanes are used for the modification of epoxy resins