Mechanical Spectroscopy of a YSiAlON Glass
نویسندگان
چکیده
A YSiAlON glass has been studied by mechanical spectroscopy, through the glass transition. The a-relaxation peak observed in the YSiAlON glass can be interpreted well by a formalism of hierarchically correlated molecular mobility through the glass transition. In particular this formalism accounts for the observation of unusually high apparent activation energy. The viscoelastic properties of the glass are compared to the mechanical behavior of a silicon nitride ceramic.
منابع مشابه
ساخت و مشخصه یابی نانوکامپوزیت گلاس آینومر- فورستریت و بررسی تأثیر میزان نانوذرات فورستریت بر خواص مکانیکی و زیست فعالی آن
The objective of this study was to synthesize glass ionomer–forsterite nanocomposite and study the effect of incorporating forsterite nanoparticles to the ceramic part of glass ionomer cement in order to improve mechanical properties and bioactivity. So, Forsterite nanoparticles were made by the sol-gel process using different weight percentages added to the ceramic part of commercial GIC (F...
متن کاملEffect of surface-functionalization of Na+-montmorillonite nanoclay using 3-aminopropyltrimethoxy silane on the mechanical properties of E-glass chopped strand mat/epoxy composites
In the present work, Na+-montmorillonite nanoclay (Na-MMT) was functionalized using 3-aminopropyltrimethoxysilane (3-APTMS) as a coupling agent. The covalent functionalization of MMT was confirmed by Fourier-transform infrared spectroscopy (FT-IR). In the specimen fabrication stage, 5 wt% of pristine MMT or silane-functionalized MMT (f-MMT) were incorporated into an epoxy system and the resulta...
متن کاملMechanical properties of electrophoretically deposited 45S5 bioglass-graphene oxide composite coatings
Bioglass-graphene oxide composites can be served as a high-potential candidate for biomedical applications due to its specific mechanical properties. In this study, the 45S5 bioactive glass (BG) - graphene oxide (GO) composite containing 2 wt. % GO was coated on titanium alloy via electrophoretic deposition process (EPD). The synthesized GO was incorporated into BG coating to improve the mechan...
متن کاملبررسی مقایسه‌ای تأثیر افزودن نانوذرات دیوپسید و سیلیکا سولفوریک اسید بر خواص مکانیکی سیمان‌های گلاس آینومر
The aim of the present study is to study the effects of adding diopside (CaMgSi2O6) as well as silica sulfuric acid nanoparticles to ceramic part of glass ionomer cement (GIC) in order to improve its mechanical properties. To do this, firstly, diopside (DIO) nanoparticles with chemical formula of CaMgSi2O6 were synthesized using sol-gel process and then, the structural and morphological p...
متن کامل