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Thermal stability

About: Thermal stability is a research topic. Over the lifetime, 38907 publications have been published within this topic receiving 767839 citations.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the electrical conductivity of polyaniline sulfate was recorded during cycles between room temperature and 85, 105, 125 and 145°C, and the maxima of the conductivity-temperature heating curves were discussed.

25 citations

Journal ArticleDOI
TL;DR: In this article, the band alignment and thermal stability for HfO2 films on SiC with and without nitridation have been studied by using photo-emission spectroscopy.
Abstract: The band alignment and thermal stability for HfO2 films on SiC with and without nitridation have been studied by using photoemission spectroscopy. The valence- and conduction-band offsets at HfO2/4H-SiC interfaces were measured to be 1.02 and 1.53 eV, respectively. The atomic source nitridation improves interface thermal stability with nitrogen passivation for the oxygen vacancies in dielectric films and for the defects on SiC surface, but induces band gap reduction for the HfO2 dielectric layer and band alignment shift at the interface. Postnitridation annealing helps to improve the band offsets of dielectric film to have sufficient injection barrier.

25 citations

Journal ArticleDOI
TL;DR: In this article, the authors measured the d.c. electrical conductivity and breakdown voltages of r.f.-sputtered alumina layers 5 μm thick and found that the conductivity was of the order of 10 −15 ω -1 cm -1 at room temperature and of the course of 10 -11 ω −1 cm −1 at a temperature of 823 K in an argon atmosphere.

25 citations

Journal ArticleDOI
TL;DR: In this paper, a cubic structure ZrMCM-48 with high specific surface area was successfully synthesized using cetyltrimethyl ammonium bromide (CTAB) as template and tetraethyl orthosilicate (TEOS) and sodium fluoride as raw materials.

25 citations

Journal ArticleDOI
TL;DR: In this paper, bright red pigments based on montmorillonite (MM) intercalated with rhodamine 6G (R6G) have been developed for the purpose of pigmenting polyethylene-based polymers.
Abstract: Bright red pigments, based on montmorillonite (MM) intercalated with rhodamine 6G (R6G) have been developed for the purpose of pigmenting polyethylene-based polymers. The cationic dye R6G was intercalated into NH + 4 -saturated MM in a slightly acidic medium. The resultant inorganic-organic MM complex was characterized using X-ray diffraction, thermogravimetric analysis, Fourier transform infrared (FTIR) spectra, diffused reflectance, and color measurements. Expansion in basal spacing from an initial 11.3 to ∼ 15.8 A was detected in the X-ray profile, confirming clay intercalation with R6G. The average particle size of the intercalated clay was 35 nm as measured by photon scattering. Frequency shifts of the C-H bending vibration from 724 to 744 cm -1 and that of the carbonyl (>C = O) stretching vibration from 1647 to 1666 cm -1 have been observed as a result of intercalation in FTIR spectra. Improvement in thermal stability for the intercalated MM was indicated by results from thermal analysis. The intercalated colored polyethylene-pigment showed enhanced stability under exposure to ultraviolet radiation of wavelength of 200-400 nm. The values for color coordinates were a* = 53.45 and b* = 9.62 from the color measurements.

25 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20232,975
20226,160
20212,211
20202,210
20192,233
20182,245