What is a liquid metal thermal paste?Liquid metal thermal paste is a paste-like material with metallic characteristics.It has the following characteristics:1.High thermal conductivity2. Good adhesion3. High temperature resistance4. Does not flow at high temperatures5. Non-volatile6. Does not oxidize7. Does not cure at room temperature8. Conductive9. Non-flammable and explosive10. Non-toxic environmental protectionApplication fields of liquid metal thermal paste.Liquid metal thermal pastes can be used in magical aerospace and Computer configuration, and much more. This is a novel in recent years, and its thermal conductivity is far superior to traditional silicone oil-based silicone grease.The method of use is to first clean the surface of the object, take out a small amount of liquid metal thermal paste, and apply it evenly on the surface.It is also a pure metal paste-like thermal interface material, which has super high thermal conductivity and stability, can break through the traditional thermal interface materials, and has excellent thermal conductivity. Widely used for heat dissipation of electronic equipment in high temperature and high density heat flow occasions.How often to replace theliquid metal thermal paste?After testing, the performance of the liquid metal thermal paste used on the CPU for more than 2 years has not deterioratedIt can be seen that the liquid metal thermal paste has a long service life.NOTICE: Liquid metal is conductive, novices need to do a good job to insulation, and don’t put liquid metal with aluminum and aluminum alloyLiquid metal thermal paste and thermally conductive silicone greaseSilicone grease filling effectFor safety considerations, the conductivity of silicone grease must be very weak. Therefore, some silver and aluminum will be added on the basis of aluminium oxide to improve the thermal conductivity. Due to the smallest particles still can’t fill the gap completely, the effect of silicone grease is very limited.Advantages of liquid metals Even if the traditional silicone grease doesn’t care about the conductivity, full use of metal powder is useless. The cost of moving from micron to nanometre will increase exponentially, but the performance will be not very strong.Metals are directly composed of atoms, and the atoms are connected by metal bonds. Since the outer layer of the gallium atom has only three electrons, the force of constraining between the atoms is very weak, so the gallium-based alloy can be in a liquid state at normal temperature.Liquid metalfilling effectNanometrethermalpasteThe performance of liquid metal is modified by a special process. The metal thermalpaste made by adding nanometre metal particles is a 100% thick metal thermal grease with a thermal conductivity that more than 20 W / m · K, it’s veryadhesive and heatresisting. It will not flow, evaporate, oxidize or dry out in high temperature environments. It is an ideal thermally conductive material to replace silicone grease. It can also be used for IGBT and large LED cooling, power battery cooling, CPU / GPU cooling, and can maintain high thermal conductivity and safety for a long time. Metal thermal paste is a non-toxic product that complies with EU RoHS standards. It can be directly applied between the heat source and the heat sink, which can completely fill the gap and take advantage of the high thermal conductivity of the metal. The applied thickness can be between 0.01 mm and 0.2 mm. At the same time, the liquid metal does not react with copper and stainless steel, so that the safety and service life of the contact device can be achieved. ingredientGaInSnAgZnThermal conductivity>20W/m·KPackaging specifications5g, 10g, 100gConductivity3 X 106S/mViscosity8000 mPa·sOperating temperature-50℃～600℃Volatility
uid metal is called a gallium-indium alloy.Gallium alloy materials with different melting points are formed by adding other elements to the "liquid metal material-gallium".Are Gallium Alloy Liquid Metal Materials Safe?Gallium ions are toxic. If taken in excess, it can have adverse effects on the human body. For example, short-term exposure to large doses of gallium chloride can cause throat inflammation and chest pain, and severe cases may cause adverse reactions such as partial paralysis.However, elemental gallium and gallium alloys are non-toxic, and liquid metals are gallium alloy materials. Liquid metal has a boiling point of up to 2000 ° C, and its physical and chemical properties are very stable, which means that it will not be volatile in the air like mercury, so it will not directly harm people.In addition, gallium is also used in some medical diagnostic processes, such as tumors, anti-osteoporosis, and immunosuppression. In some medical devices and medical materials, gallium is also used, for example, as a dental filling material, a thermometer and the like.Before using a variety of materials, you must fully understand the properties of the material itself and use the correct method.Application of liquid metal batteriesA liquid metal battery is composed of two liquid metal electrodes and a molten salt electrolyte. The positive electrode material is usually a transition metal element or alloy such as tin, and the negative electrode material is usually an alkali metal or alkaline earth metal element or alloy. When the battery is discharged, the electrons lost by the negative metal material work on the external circuit, and the cations generated by the lost electrons move to the vicinity of the positive electrode of the battery through the molten salt, a reduction reaction occurs, and a new alloy is formed with the positive metal. When the battery is charging, the above process is reversed.