p pBackground/p pExposure to respirable crystalline silica particles, as opposed to amorphous silica, is associated with lung inflammation, pulmonary fibrosis (silicosis), and potentially with lung cancer. We used Affymetrix/GeneSifter microarray analysis to determine whether gene expression profiles ...
Specific features of erbium ion photoluminescence in structures with amorphous and crystalline silicon nanoclusters in silica matrix annealing of Si-rich oxide or nitride films which gives rise to the phase separation reaction and the formation of crystalline silicon nanoclusters in the ... Sergey Dyakov...
Silica, Amorphous and Other Non-Crystalline Forms:硅,无定形和其他非结晶形式硅,and,Other,Forms,无定形,无定形,非结晶,other,forms,non 文档格式: .pdf 文档大小: 445.03K 文档页数: 43页 顶/踩数: 0/0 收藏人数: 0 评论次数: 0 文档热度: ...
Injection current was recently used to explain the origin of strong-field-induced harmonic generation in fused silica60. In amorphous fused silica (Eg ≈ 9 ev34,35),x0varies from 6 to 18 Å for the laser intensities used in our experiments. Transition of electron from valence to ...
diffraction data [9]. The important feature of the IRO of amorphous silica is that six membered ring (6R) produced by the connection of SiO4tetrahedra is dominant as shown inFig. 1[10]. Although recent researches have revealed various structure of non-crystalline materials, role of heteroatoms...
Amorphous glasses, including fused silica, can be etched in a similar way to single-crystal quartz. Examples are the isotropic etching of borosilicate glassin hydrofluoric acid (HF), in which a strip-opening in the masking layer will result in a hemispherical channel structure if sufficient etch...
Dry gel conversion of organosilane templated mesoporous silica: from amorphous to crystalline catalysts for benzene oxidationDry gel conversion of organosilane templated mesoporous silica: from amorphous to crystalline catalysts for benzene oxidationFemtosecond Laser IonizationCircular...
Although the amorphous wear material lacks long-range order, it is still dominated by silica tetrahedra, similar to crystalline species of silica. Si–O bonds which are dangling, stretched, bent (as shown in Fig. 5 and Table 2), or vacancies within and between silica tetrahedra all act as ...
Adsorption of a cationic surfactant, benzyldimethyldodecylammonium bromide (BDDAB), from aqueous solutions on negatively charged surfaces of precipitated silica S91-16 and crystalline quartz at 298 K and free pH has been studied using adsorption microcalorimetry. Differential molar enthalpy of displacement...
Phonon Transport at Crystalline Si/Ge Interfaces: The Role of Interfacial Modes of Vibration. Sci. Rep. 6, 23139 (2016). 37. Taraskin, S. N. & Elliott, S. R. Nature of vibrational excitations in vitreous silica. Phys. Rev. B 56, 8605–8622 (1997). 38. van Beest, B. W., ...