Acta Materialia_60_16_2012
... results in use of six components of the original Nye tensor (five directly and one difference [42]). These can be mapped directly to the six measured lattice rotation gradients in the sample frame of reference. In most cases, there are many more than six possible GND types to consider and so the pro ...
... results in use of six components of the original Nye tensor (five directly and one difference [42]). These can be mapped directly to the six measured lattice rotation gradients in the sample frame of reference. In most cases, there are many more than six possible GND types to consider and so the pro ...
Cleburne County - Wiregrassrockhounds.com
... "stone attracting ash" (a reference to its pyroelectric properties, i.e., when heated or rubbed it attracts dust and dirt particles). Scientifically, tourmaline is not a single mineral, but a group of minerals; all having essentially the same crystal structure but with considerable variation in chem ...
... "stone attracting ash" (a reference to its pyroelectric properties, i.e., when heated or rubbed it attracts dust and dirt particles). Scientifically, tourmaline is not a single mineral, but a group of minerals; all having essentially the same crystal structure but with considerable variation in chem ...
Chapter 1 Review of laser
... which the absorbed energy has to go before it is transferred to the lattice. There is a differential expression [Lie82] to calculate the resulting average excess carrier energy, but the main difficulty is that the material parameters depend on the temperatures of the plasma and the lattice as well a ...
... which the absorbed energy has to go before it is transferred to the lattice. There is a differential expression [Lie82] to calculate the resulting average excess carrier energy, but the main difficulty is that the material parameters depend on the temperatures of the plasma and the lattice as well a ...
Design and Analysis of Chain and Network Structures from Organic
... Crystal Structure of (2). A reaction between the tetrahedral cluster, [Mo12O46(AsC6H4-4-NH3+)4], and Ag+ ions was conducted to probe the possibility of connecting the clusters through linear linkages between the aniline nitrogens and a transition metal. Silver was chosen because of its propensity to ...
... Crystal Structure of (2). A reaction between the tetrahedral cluster, [Mo12O46(AsC6H4-4-NH3+)4], and Ag+ ions was conducted to probe the possibility of connecting the clusters through linear linkages between the aniline nitrogens and a transition metal. Silver was chosen because of its propensity to ...
Fall 2016 Mineralogy/Petrology Syllabus Instructor: Philip Goodell
... igneous rocks; caldera rocks ioGAS activity, Mineral sample quiz, #4 Week Tuesday September 13 Phase Equilibrium Thursday September 15, Phase Equilibrium LAB: bubbles Assignments LAB: Caldera rocks, ioGAS activity #5 Week Tuesday September 20, Simple crystal structures, packing of spheres. Mineral f ...
... igneous rocks; caldera rocks ioGAS activity, Mineral sample quiz, #4 Week Tuesday September 13 Phase Equilibrium Thursday September 15, Phase Equilibrium LAB: bubbles Assignments LAB: Caldera rocks, ioGAS activity #5 Week Tuesday September 20, Simple crystal structures, packing of spheres. Mineral f ...
Chapter 3 PowerPoint
... – Amorphous – atoms in a random pattern • Liquid - atoms or molecules tightly packed but in random motion • Gas - particles in random motion at high speeds, separated by empty space ...
... – Amorphous – atoms in a random pattern • Liquid - atoms or molecules tightly packed but in random motion • Gas - particles in random motion at high speeds, separated by empty space ...
ELECTRONIC, OPTICAL, STRUCTURAL, AND ELASTIC
... The initial discoveries of the very interesting and important class of layered ternary transition-metal carbides and nitride date back to the 1960s.1–7 Three decades later, using a reactive hot-pressing method, Barsoum and El-Raghy8 successfully fabricated single-phase Ti3SiC2 in polycrystalline bul ...
... The initial discoveries of the very interesting and important class of layered ternary transition-metal carbides and nitride date back to the 1960s.1–7 Three decades later, using a reactive hot-pressing method, Barsoum and El-Raghy8 successfully fabricated single-phase Ti3SiC2 in polycrystalline bul ...
Mineral Groups
... This mineral has shiny, gold, cubic crystals with striations, so it is pyrite. ...
... This mineral has shiny, gold, cubic crystals with striations, so it is pyrite. ...
Ta alloys, studied by X-ray diffraction and molecular dynamics
... Crystalline alloy structures were formed by randomly exchanging atoms in perfect fcc, bcc and b-Ta lattices. The resulting structures were then equilibrated for 1 ns with Berendsen pressure scaling; the initial temperature was set to 300 K. Fig. 2a–c shows the temperature evolution during equilibrat ...
... Crystalline alloy structures were formed by randomly exchanging atoms in perfect fcc, bcc and b-Ta lattices. The resulting structures were then equilibrated for 1 ns with Berendsen pressure scaling; the initial temperature was set to 300 K. Fig. 2a–c shows the temperature evolution during equilibrat ...
Full Article
... extrinsic semiconductor of n-type silicon (n-Si). It is found that there are multiple transmission peaks within the photonic band gap (PBG) as the defect thickness increases. The filtering position can be changed by varying the doping density in n-Si. That is, the peak (channel) wavelength is blued-s ...
... extrinsic semiconductor of n-type silicon (n-Si). It is found that there are multiple transmission peaks within the photonic band gap (PBG) as the defect thickness increases. The filtering position can be changed by varying the doping density in n-Si. That is, the peak (channel) wavelength is blued-s ...
feature articles
... pore-occupying, disordered solvent molecules (sometimes resulting in refined structures with residual values larger than those typically reported for molecular crystals), or difficulties associated with the growing of good diffraction-quality crystals. In addition, new techniques are being developed ...
... pore-occupying, disordered solvent molecules (sometimes resulting in refined structures with residual values larger than those typically reported for molecular crystals), or difficulties associated with the growing of good diffraction-quality crystals. In addition, new techniques are being developed ...
Temperature dependence of liquid Sn sputtering by - CPMI
... at 380 °C is about 0.4 particles/ion for 700 eV He+ at 45°. Under similar bombardment conditions the yield for liquid Li is about 0.8 particles/ion. However, the ion-induced secondary ion fraction for lithium is high, 0.66 (where for most metals, including tin, the fraction is closer to 0.05). There ...
... at 380 °C is about 0.4 particles/ion for 700 eV He+ at 45°. Under similar bombardment conditions the yield for liquid Li is about 0.8 particles/ion. However, the ion-induced secondary ion fraction for lithium is high, 0.66 (where for most metals, including tin, the fraction is closer to 0.05). There ...
PDF file - Berkeley Global Science Institute
... opposing slats are all at 908. NATURE | VOL 423 | 12 JUNE 2003 | www.nature.com/nature ...
... opposing slats are all at 908. NATURE | VOL 423 | 12 JUNE 2003 | www.nature.com/nature ...
![Conformations of [beta]-amino acid residues in peptides: X](http://s1.studyres.com/store/data/003974629_1-521aa7943d558a5d58755964c90b9e45-300x300.png)
Conformations of [beta]-amino acid residues in peptides: X
... region of 6608 and have the same sign. In contrast, the formation of a C12 helix requires that / and h are close to the gauche conformation, but have opposite signs. This clearly suggests that the b3,3Ac6c residue is precluded from forming many of the intramolecularly ...
... region of 6608 and have the same sign. In contrast, the formation of a C12 helix requires that / and h are close to the gauche conformation, but have opposite signs. This clearly suggests that the b3,3Ac6c residue is precluded from forming many of the intramolecularly ...
MaterialEASE: Amorphous Materials: A Tutorial on Noncrystalline
... form will generally be more stable. This is because the crystalline solid is at chemical equilibrium, whereas the amorphous form is not. Preparing an amorphous solid requires rapid cooling to avoid crystallization. The cooling rate that constitutes rapid cooling varies with the type of material. The ...
... form will generally be more stable. This is because the crystalline solid is at chemical equilibrium, whereas the amorphous form is not. Preparing an amorphous solid requires rapid cooling to avoid crystallization. The cooling rate that constitutes rapid cooling varies with the type of material. The ...
cis and trans isomers of 1,2-cyclohexanediol and 2,3
... be about as favorable as the average of A:A and B:B interactions. The isomers have different shapes, but Pauling & Delbrueck (1940) pointed out that it is the than ca 10% of the time (see references cited above). The complementarity of molecules rather than their identity that presence of improper s ...
... be about as favorable as the average of A:A and B:B interactions. The isomers have different shapes, but Pauling & Delbrueck (1940) pointed out that it is the than ca 10% of the time (see references cited above). The complementarity of molecules rather than their identity that presence of improper s ...
Microwave Synthesis of Cu, Fe-doped TiO2 and Its
... photogenerated charge carriers[2], so people adopt many kinds of method to improve its performance effectively, such as surface dye photsensitization, making use of semiconductors with different energy gap, coupling and doping by metal ion and so on. The method of ion doping which is easier, better ...
... photogenerated charge carriers[2], so people adopt many kinds of method to improve its performance effectively, such as surface dye photsensitization, making use of semiconductors with different energy gap, coupling and doping by metal ion and so on. The method of ion doping which is easier, better ...
Synthesis of a new alkali metal-organic solvent
... alkali metal content. The ideal compositions (still under debate) [10,11,12] are difficult to control during synthesis by conventional high temperature methods. A pronounced reversible phase separation revealed recently in 122 single crystals [13,14,15,16,17,18], as well as controversies regarding t ...
... alkali metal content. The ideal compositions (still under debate) [10,11,12] are difficult to control during synthesis by conventional high temperature methods. A pronounced reversible phase separation revealed recently in 122 single crystals [13,14,15,16,17,18], as well as controversies regarding t ...
Physical Properties of the NbC Carbide
... The chemical bonding in transition metal carbides is of a complex nature with a covalent, metallic and ionic character. This fact explains the observed physical properties: high hardness and high melting points are properties typical of solids with ionic or covalent bonding, while thermal and electr ...
... The chemical bonding in transition metal carbides is of a complex nature with a covalent, metallic and ionic character. This fact explains the observed physical properties: high hardness and high melting points are properties typical of solids with ionic or covalent bonding, while thermal and electr ...
Surface Interactions and Microstructural Characterization of API
... Use of crystalline active pharmaceutical ingredients (API) in solid oral dosage forms are a preferable form in the pharmaceutical industry because of good stability compared to amorphous. However, a large number of crystalline APIs has poor solubility being the rate limited for the bioavailability1, ...
... Use of crystalline active pharmaceutical ingredients (API) in solid oral dosage forms are a preferable form in the pharmaceutical industry because of good stability compared to amorphous. However, a large number of crystalline APIs has poor solubility being the rate limited for the bioavailability1, ...
Crystal structure
In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms, ions or molecules in a crystalline liquid or solid. It describes a highly ordered structure, occurring due to the intrinsic nature of its constituents to form symmetric patterns.The crystal lattice can be thought of as an array of 'small boxes' infinitely repeating in all three spatial directions. Such a unit cell is the smallest unit of volume that contains all of the structural and symmetry information to build-up the macroscopic structure of the lattice by translation.Patterns are located upon the points of a lattice, which is an array of points repeating periodically in three dimensions. The lengths of the edges of a unit cell and the angles between them are called the lattice parameters. The symmetry properties of the crystal are embodied in its space group.A crystal's structure and symmetry play a role in determining many of its physical properties, such as cleavage, electronic band structure, and optical transparency.