"Micro-nano structure and device laser processing and characterization platform" passed the acceptance
The electrician's "laser processing and characterization platform for micro-nano structures and devices" funded by the Chinese Academy of Sciences' repair and purchase funds successfully passed the inspection and acceptance of the Academy's special repair and purchase office. The platform is composed of two parts: processing equipment and testing equipment, which can analyze and detect the surface morphology, surface physical properties, internal microstructure and other fields of the material, and can be used for nano-scale precision measurement.
Among them, the scanning range of the atomic force microscope used for surface topography analysis and detection, and physical property analysis reaches 90μm × 90μm × 10μm, the noise level is less than 0.3A, and the resolution reaches the atomic level; the laser interferometer measurement system for nano-level precision measurement Linear length measurement is 0-40meters, laser head frequency stability is ± 0.05ppm, resolution is up to 0.038nm; the viscosity test system for all aspects of viscosity testing can not only control the influencing factors such as shear force and shear rate, but also Processing data from various mathematical models such as NEWTON, OSTWALD, BINGHAM, STEIGER-ORI, CASSON, HERSCHEL-BULKLEY; in addition, the scanning laser Doppler vibrometer can measure high-frequency small samples (micron level) vibration and distant objects Surface vibration; X-ray energy spectrometer can analyze elements between Be4-U92, energy resolution (Mn-Ka) is better than 129eV; infrared thermal imager can be able to carry out non-contact temperature distribution dynamics of high-temperature heat sources Detection and analysis, online monitoring of the temperature change of the measured object; and micro-battery test system and Agilent network analyzer.
The platform has started external testing services in February this year, of which two devices, atomic force microscope and electric refrigeration spectrometer, have been added to the sharing management platform of the Chinese Academy of Sciences.
The construction of micro-nano structure laser processing and device photoelectric characteristic test platform will greatly improve the analysis and testing capabilities of the materials research field of electricians, for new energy utilization, solar cells, solar power generation, superconducting materials, bioelectromagnetics, micro-nano processing, Motors and power electronics and electrical drives, the application of superconducting technology and other frontier fields of research and development provide the necessary testing methods. As a comprehensive basic scientific research and high-tech development platform that combines nano-device laser fabrication and optoelectronic characteristics evaluation, some of the platform's functions and indicators have reached international leading levels.
Blue Agate Gemstone :
There are many different types of agate depending on the colors and formation. Common types of agate include blue agate, moss agate, green agate, tree and wood agate, Indian black agate, Montana agate, banded agate, red agate, graveyard point agate. A Mexican agate, showing only a single eye, has received the name of cyclops agate. Included matter of a green, golden, red, black or other color or combinations embedded in the chalcedony and disposed in filaments and other forms suggestive of vegetable growth, gives rise to dendritic or moss agate.
How to identify and choose the agate?
Agate is a kind of gemstone jewelry ,the jewelry which produced by agate is quite popular with women. But How to identify the true agate?Please according to the following rules.The symbol of the difference between Natural agate and false is there has cross-sectional structure of a layer of grain, Make use of this flag, agate will be very easy to identify. The finished products after cutting, because there is no obvious pattern neatly, so it's easy to confuse the two. But generally speaking, natural agate has cool feeling, like a painted surface, a layer of wax and a wax luster, translucency, It's the hardness of the Moroccan 6-7,Even it will not scratch if use the knife.
Because it is in the molten state to form crystals, so mostly of them are spherical, the internal structure of the nature agate is tighter.
After grinding the surface is more delicate, rough wood and agate for a dramatic friction, instant, the agate is not fever, but wood will burning. It Is often mixed with a variety of colors, forming a beautiful pattern, such as the flowery one or the striped one.
The fake agate is synthetic, part of them are act as a high-quality stone. Its basic features are: Though it has cool handfeel, but there is no waxy feel and gloss. Some of the hardness is low, It is not easy to Score the agate with a knife . broke it and observed the cross-section, in addition to it has not the laminated structure, granular-roughened or hispidulous;Check for any gaps. Opaque, the color is clear-cut. Some unscrupulous traders glue a thin layer of organic on the surface of fake agate, it will giving a waxy luster and good feeling .This gives a person a kind of illusion. Meantime, The name must not let confuse an eye when buying, must notice to distinguish. Please Careful selection .
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