-
Nanoparticles have a special surface structure, which lacks adjacent coordinating atoms on the surface, and has high activity, so it is easy to agglomerate. Due to the strong self-absorption property among nanomaterial particles, the agglomeration of nanoparticles is inevitable. Aggregates can be divided into two types: hard agglomerates and soft agglomerates. The formation process of agglomerates...
Read More
-
The thermal properties of nanomaterials are inseparably linked to the motion behavior of molecules and atoms in the material. such as the melting point of nanomaterials. The melting point of a solid substance is fixed when its form is large in size. For nanoparticles, due to the small particles, the high surface energy of the particles, the large number of surface atoms, the incomplete coordinatio...
Read More
-
Particle size: The size of the particles is called particle size, usually the particle size of spherical particles is expressed by diameter/particle size, and the particle size of cubic particles is expressed by side length. Particle size is the diameter of a particle. However, most of the particles in practice are irregular. Therefore, in order to describe the size of the particles more convenien...
Read More
-
Nanomaterials exhibit many exotic properties that traditional materials do not have. The first thing we need to know is that the nanometer (mainly refers to less than 100nm) of the composition of nanomaterials has four major effects: 1. Small size effect The boundary conditions of the crystal periodicity are destroyed; the atomic density near the surface layer of the amorphous nanoparticle decreas...
Read More
-
The size of the particles is called the particle size of the particles, which may also be referred to as particle size. Particle size or particle size refers to particle diameter. Of course, for non-spherical particles, the particle size is related to the measurement criteria and statistical methods, and the particle size can only be "equivalent". The percentage (or cumulative percentage) of parti...
Read More
-
Characterization and testing technology is the fundamental way to scientifically identify nanomaterials, understand their diverse structures, and evaluate their special properties. The main purpose of characterization of nanomaterials is to determine some physical and chemical properties of nanomaterials, such as morphology, size, particle size, chemical composition, crystal structure, band gap an...
Read More
-
Characterization and testing technology is the fundamental way to scientifically identify nanomaterials, understand their diverse structures, and evaluate their special properties. The main purpose of characterization of nanomaterials is to determine some physical and chemical properties of nanomaterials, such as morphology, size, particle size, chemical composition, crystal structure, band gap an...
Read More
-
Fisher's method is a relatively simple particle size measurement method, which is based on measuring the speed of air passing through the powder accumulation, and then obtaining the average particle size of the powder according to the Kozeny-Carman formula. However, the Fisher method is a relative measurement method, which cannot accurately determine the true particle size of the powder, and is on...
Read More
-
Transmission Electron Microscope (TEM) Transmission electron microscopy uses an electron beam that penetrates a sample to image, which requires the sample being observed to be "transparent" to the incident electron beam. Transmission electron microscopy is widely used in materials science and biology. Since electrons are easily scattered or absorbed by objects, the penetration is low, and the dens...
Read More
-
In summer, the sun is strong, and the sunlight enters the room through the glass, causing the temperature in the car to rise sharply, which seriously affects the comfort of living and vehicle riding. Among them, the energy in the infrared band accounts for the largest proportion, and it is also the main source of energy for the temperature increase in the place where the sunlight is irradiated. By...
Read More
-
Glass thermal insulation coating is a kind of coating prepared by one or more nano powder materials. The nano materials used have special optical properties, that is, they have high blocking rate in the infrared region and ultraviolet region. , has a high transmittance in the visible region. Using the transparent and heat-insulating properties of the material, it is mixed with an environmentally f...
Read More
-
In the world of electronic materials there are two important material properties "electrical conductivity" and "thermal conductivity". Generally speaking, as long as the electrical conductivity of the material is good enough, the thermal conductivity is also good. For example, copper, silver, aluminum and other metal materials have good electrical and thermal conductivity. Therefore, most metal ma...
Read More
13929258449
online service
13929258449
admin@satnano.com
led_zhiding
+ 8613929258449
