About silver3D printingIn 2016, ETH Zurich found a feasible and innovative method-“nano droplets”3D printing.This method can use gold and silver nanoparticles as raw materials3D printingAn ultra-thin “nano wall” was created to create an unprecedented transparent conductive electrode, and finally a touch screen with better picture quality and more accurate response was created.
ETH this kind of nano3D printingThe technology “Electrohydrodynamic ink jet printing” has its magic. It can not only keep the original conductivity of metal materials, but also create a transparent structure.Recently, according to the Science and Technology Daily, Russia has produced a silver liquid with ultra-high nano-particle content, which is helpful for manufacturing3D printingink.
Large-scale, cheap, and low-cost acquisition of nanoparticles
Silver liquid with ultra-high nanometer content
The Press Office of the Krasnoyarsk Scientific Research Center of the Siberian Branch of the Russian Academy of Sciences reported that Russian scientists have produced silver liquid with ultra-high nanoparticle content, which is the first time in the world.This new process helps manufacturing3D printingInk and antimicrobial drugs.3D printingMany modern technologies, such as biomedicine, optoelectronics, and composite nanomaterial synthesis, require a large number of nano-particles that can be modulated in size and shape, but there are not many economically efficient and ecologically safe manufacturing methods.
Russian scientists have perfected the method of synthesizing silver nanoparticles and obtained an ultra-concentrated liquid that contains 1500 grams of silver nanoparticles per liter, which is more than 24 times the currently known mixture. The researchers pointed out that the project can develop into an innovative industry that obtains nanoparticles on a large scale, cheap, and low-cost. The knowledge gained from it is not only useful for the study of the synthesis of silver nanoparticle superconcentrates, but also for other metals and their oxides and other compounds.
Source of manuscript: Compiled by Russian Satellite News Agency: Dong Yingbi, Russian correspondent of Science and Technology Daily
Speaking of liquid metal, the first thing we think of is the scene of liquid metal that melts at a high temperature of up to thousands of degrees, and such scenes are most common in the production process of casting.In metal3D printingIn the field, the most widely used is SLS selective laser sintering technology, SLM selective laser melting technology, EBM electron beam melting technology, LENS laser near-net-type manufacturing technology… Whether it is sintering metal powder with a binder, The metal powder is melted into a liquid state by a heat source and “welded” together. These technologies have their own strengths and meet the processing requirements for the geometry and mechanical properties of the finished parts.
Print liquid metal like ink printing
And it is known to print liquid metal like ink printing. According to the market observation of 3D Science Valley, the most well-known company in the world is Xjet. The metal powder in Xjet’s liquid metal is still in solid form, but they use ultra-fine nano Grade metal powder is evenly distributed in the “ink” to make it “suspend” into a “liquid”, and then pass through the high-speed3D printingThe technology prints it in a high temperature environment as high as 300 to 500 degrees. Because the metal powder is very fine, it will “bond” to each other at high temperature, so that the printed product has a smooth surface.
Xjet uses the patented NanoParticle Jetting core technology to build metal parts using metal nanoparticles suspended in liquid. Compared with other current technologies, this technology can produce more precise and highly complex parts.
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