Porosity refers to the ratio of the volume of all pores in a porous body to the total volume of the porous body, and often measures the size of the void space of the porous body.
metal foam often has a porosity of more than 90% and a porous metal having a certain strength and rigidity. These metals have high porosity and pore diameters up to the millimeter scale.
The electroless nickel plating method, vacuum nickel plating method and conductive glue immersion method are used to prepare the conductive layer. Through pre-plating nickel, a thick nickel layer can
Editor's note: Electric technology is the future of the green earth, and battery technology is the foundation of electric technology and the key to restricting the large-scale development of electric
The leading edge of the wing that the airflow first contacts when the aircraft travels has high requirements on the hydrophobicity of the material, insect adhesion, and corrosion resistance. North Car