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there are several other ways in which amorphous metals can be produced, including physical vapor deposition, solid-state reaction, ion irradiation, melt spinning, and mechanical alloying
An important consequence of this was that metallic glasses could only be produced in a limited number of forms (typically ribbons, foils, or wires) in which one dimension was small so that heat could be extracted quickly enough to achieve the necessary cooling rate. As a result, metallic glass specimens (with a few exceptions) were limited to thicknesses of less than one hundred micrometres.
morphous Metal Transformer (AMT) is a kind of energy efficient transformer found on electric grids . The magnetic core of such transformer is made with amorphous metal, which can be easily magnetized / demagnetized. Because of this property, core loss of AMT is significantly lower than conventional transformer. Typically, core loss can be reduced by 70-80% as compared to its traditional counterpart. Reduction in energy loss leads to reduction of generation requirement and hence less CO2 emission. As energy shortage and environmental concerns are increasingly recognized, this technology has also caught attention . In particular, it has been widely adopted by big developing countries such as China  and India  where energy conservation and CO2 emission reduction have been put on priority. These two countries, for example, can potentially, on annual base, save 25-30TWh electricity, elimate 6-8GW generation investment, and reduce 20-30 million tons of CO2 emission by fully utilizing this technology.
Originally posted by Taeas Stirling
Hmm, cube 4 foot on a side weighing 6000 lbs. 93.75Lbs per square foot.
Most aluminum alloys being about 115 per...said it was soft... Looking at a periodic table arranged per weight... lithium seems to be the only metal light enough, and yet considered soft. Now what would someone do with little cubes of lithium??? especially in the mid to early 60's, anyone have a clue?
Commercial aluminum-lithium alloys are targeted as advanced materials for aerospace technology primarily because of their low density, high specific modulus, and excellent fatigue and cryogenic toughness properties. The principal disadvantages of peak-strength aluminum-lithium alloys are reduced ductility and fracture toughness in the short transverse direction, anisotropy of in-plane properties, the need for cold work to attain peak properties, and accelerated fatigue crack extension rates when cracks are micro structurally small.
it's moving very fast to the northeast, spraying fire-like gas and transforming into two objects, a ball and a cube."It's not a line from a sci-fi movie, but from a tape recording of a conversation between a ground dispatcher and a passenger plane pilot who allegedly chased an unidentified flying object 16 years ago above Shanghai.
Originally posted by gniessic
Agree with ussr, LK-1.....75ton or soyuz 7K. Luna series first on moon and all around as well as moon orbit which crashed on earth[ see other thread ]
Originally posted by Springer
Just to keep it straight, the cubes were reported to be 2 inches by four inches (2"x4") there was no record of it being four feet (4') on a side. There were no other dimensions given at all.
That's the part that throws me, it would take LOTS of these little cubes to get to 6,000 pounds total weight. Odd, very odd...
Abstract. Geometrical disorder is present in many physical situations giving rise to eigenvalue problems. The simplest case of diffusion on a random lattice with fluctuating site connectivities is studied analytically and by exact numerical diagonalizations. Localization of eigenmodes is shown to be induced by geometrical defects, that is sites with abnormally low or large connectivities. We expose a `single defect approximation' (SDA) scheme founded on this mechanism that provides an accurate quantitative description of both extended and localized regions of the spectrum. We then present a systematic diagrammatic expansion allowing to use SDA for finite-dimensional problems, e.g. to determine the localized harmonic modes of amorphous media.
These different forms of bonding are largely responsible for the different thermal and electrical properties of conductors and insulators. Both electrical current and heat are transmitted through these solids by the motion of electrons (to be strictly accurate, heat is also transmitted through vibrations of the atomic structure, but we'll ignore this for the moment). In a metallically bonded material the electrons can drift easily between the ion cores, but in a covalently bonded material they have to "hop" from one bond to the next in order to move. In an ionically bonded material the valence electrons are tightly bound to ion-cores which are themselves "tied" to fixed ionic sites in the crystal structure. Thus ionic solids are generally poor conductors, covalent solids may be slightly better, and metals are the best of all.
e show that the bistable behavior of a system of structural defects can cause the phase transition from the crystal to the amorphous state in laser fields, which does not produce melting of the crystal lattice
It is shown on a specific example that fractal boundary conditions drastically alter the properties of wave excitations in space. The low-frequency part of the vibration spectrum of a finite-range fractal drum is computed using an analogy between the Helmoltz equation and the diffusion equation. The irregularity of the frontier is found to influence strongly the density of states at low frequency. The fractal perimeter generates a specific screening effect. Very near the frontier, the decrease of the wave form is related directly to the behavior of the harmonic measure. The possibility of localization of the vibrations is qualitatively discussed and we show that localized modes may exist at l
The present invention includes substantially single-phase lithium metal oxide compounds having hexagonal layered crystal structures that are substantially free of localized cubic spinel-like structural phases. The lithium metal oxides of the invention have the formula LiÎ±MÎ²AÎ³O2, wherein M is one or more transition metals, A is one or more dopants having an average oxidation state N such that +2.5â¦Nâ¦+3.5, 0.90â¦Î±â¦1.10, and Î²+Î³=1. The present invention also includes dilithiated forms of these compounds, lithium and lithium-ion secondary batteries using these compounds as positive electrode materials, and methods of preparing these compounds.
ok last edit
The mono-lithiated complexes, for example, lithium phthalocyanine (LiPc),12–16 lithium naphthalocyanine (LiNc),9–11 and lithium tetraphenylporphyrin (LiTPP)17 are isolated as crystalline solids that exhibit unique structural and paramagnetic properties.
i once again rest my case.
sorry bout all the qouting but i think its important!,so this will be last edit i swear!
with different chromium, manganese and cobalt contents were prepared and heat treated at 480, 580 and 680° C for 5 h. The magnetic susceptibilities of untreated and heat-treated samples were measured. The magnetic susceptibility was found to increase as the Cr2O3, MnO or CoO content increased. The values for magnetic susceptibility were co-related to the relative proportion of valence states of transition elements. The magnetic susceptibilities were found to have random behaviour with heat-treatment temperatures. Samples containing Cr2O3 showed transformations from diamagnetic to paramagnetic behaviour with the increase in Cr2O3 content, which may be due to the change of chromium ions from the high valence to the low valence state.
Lithium borosilicate glasses
if you dont know what im on about read this
[edit on 1-12-2007 by welivefortheson]