The amorphous island, in (B), is formed at the intersection of hcp and twin bands. Deformation microstructure of the CrMnFeCoNi HEA subjected to dynamic compression/shear. (A) Bright-field image ...
Nature Materials - Amorphization can be an additional mechanism to assist plastic deformation in crystalline materials, providing a strategy to improve the load …
Апп тойм: Солонгос хэл сурахад тань туслах 5 апп ... Жишээ нь, нэг текст байлаа гэхэд түүний үг бүрийг хөхөөр тэмдэглэсэн байх бөгөөд мэддэг үгнүүдээ та шараар тэмдэглээд явна. Харин мэдэхгүй ...
The process of amorphization can release the large deviatoric stresses developed at the intersections of defects (dislocations, stacking faults, and twins) or …
The localized amorphization dramatically accelerates the reaction kinetics and thus enhances the overall performance for the oxygen evolution reaction (OER). Specifically, a strong correlation between the OER activity and the amorphization rate is discovered, and α-Ni 0.75 Fe 0.25 (OH) 2 with the highest amorphization rate of 78% …
Further investigations of the sample showed that only a very low concentration of dislocations Pre-amorphization damage in ion-implanted silicon 289 elongated along (110) directions is observed. A dose of 2 x 1014/cm2 results in a band of dislocations positioned - 0.9 ~m below the Si surface (fig. 5d).
Pop-ins in B 4 C single crystals. The nanoindentation experiments of a single-crystal B 4 C are schematically illustrated in Fig. 1A, together with possibly activated slip systems in the B 4 C single crystals (Table 1).Raman spectra taken from the (214), (223), and (104) single crystals are displayed in fig. S1, showing the clear difference in relative …
Монгол орны усны нөөц, ашиглалт, ус хэрэглээ. Гол, мөрнөөс (34.6 км 3) авч ашиглах боломжит нөөцийг судалгаагаар 4.9 км 3, газрын доорх (12 км 3) усны боломжит нөөцийг 5.6 км 3 гэж ойролцоогоор ...
amorphization resistanc e character istics are to be found in compounds that have a natur al tendency to accommodate lattice disorder. The search for radiation-tolerant materials that can be used as
Ge is a promising high mobility channel alternative material for the future generation of pMOS transistors, 1–3 and a serious effort has been invested in the last years in order to understand the mechanisms of Ge damage accumulation and amorphization caused by ion implantation. 4–10 B-doping in Ge is of particular interest due to its low …
The existence of organic components in 2D hybrid organic–inorganic perovskites gives them significant structural flexibility in response to pressure. Here we study the high-pressure behavior and associated physical properties of a family of 2D hybrid perovskites, [CnH2n+1NH3]2PbI4 (n = 4, 8, 12). Our high-pressure synchrotron X-ray …
Methods of amorphization and investigation of the amorphous state. The amorphous form of pharmaceutical materials represents the most energetic solid state of a material. It …
Amorphization of quartz by ionization processes has also been reported. Douillard et at. [3] studied the modifications induced in a-quartz by an energetic ion bombardment, I-e- kinetic.
We selected three representative specimens (NF950-1, NF1050-1 and NF1200-1) out of the eight deformation experiments reported in ref. 20.These specimens …
Mechanical amorphization of three chitosan samples with high, medium, and low molecular weight was studied. It is shown that there are no significant differences between the course of amorphization process in a planetary ball mill of chitosan with different molecular weights, and the maximum degree of amorphization was achieved in …
Stress-induced amorphization in bridgmanite at high-pressure, high-temperature. a) Equivalent stress in bridgmanite (Bm) and ferropericlase (Fp) as a function of strain. Deformation conditions are 2150 K, 27.5 GPa for gamma 25 and gamma 24; 2130 K, 27 GPa for gamma 22; 2000 K, 24.1 GPa for beta 74.
A theory of amorphization of ordered intermetallic alloys subject to electron and ion bombardment has been previously developed. It was proposed that a basic mechanism of amorphization is the build-up to a critical level of a complex defect consisting of a vacancy-interstitial associated pair. When that level is reached in a certain region, …
Amorphization. Pressure-induced amorphization (PIA) is a phenomenon that involves an abrupt transition between a crystalline material and an amorphous solid through …
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The aim of this study was to investigate the effects of solid carriers and processing routes on the properties of amorphous solid dispersions of itraconazole. Three solid carriers with a …
The amorphization of the crystalline silicon sublayer during irradiation and/or heating can provide an additional mechanism for accommodating irradiation-induced defects. In this study, we ...
Amorphization technology has been the subject of continuous attention in the pharmaceutical industry, as a means to enhance the solubility of poorly water-soluble drugs. Being in a high energy state, amorphous formulations generally display significantly increased apparent solubility as compared to their crystalline counterparts, which may …
amor· phi· za· tion ə-ˌmȯr-fə-ˈzā-shən chemistry : the act or process of making something structurally amorphous or of becoming structurally amorphous pressure-induced …