Understanding the Creation of Porous Ceramic Atomizing Cores for Vape

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The heart of a ceramic atomizing core in vape is the porous ceramic material, a novel type of ceramic known as functional porous ceramics. These ceramics are crafted through high-temperature sintering after formation and are characterized by a multitude of interconnected or sealed pores within the structure. These ceramics inherit the traditional ceramic qualities of high-temperature resistance, corrosion resistance, and robust chemical stability. However, they also offer unique attributes such as a substantial surface area, low density, and an adjustable pore size distribution.

So, how are these porous ceramic substrates for electronic cigarettes produced? Currently, four fundamental methods are predominantly used for their creation: the pore-forming agent method, partial sintering method, template substitution method, and direct foaming method.

1. Pore-Forming Agent Method

The most widely utilized technique is the pore-forming agent method. In this approach, volatile or combustible pore-forming agents are introduced into the ceramic ingredients. These agents volatilize or burn out at high temperatures, leaving behind pores in the ceramic body. Common pore-forming agents include organic resin beads, carbon fibers, carbon powder, and various other materials.

2. Partial Sintering Method

The partial sintering method involves connecting powder particles at high temperatures, allowing for the formation of a uniform porous structure between the particles. The porosity in ceramics created by this method typically does not exceed 50%, and the particles are larger than the pore size, making them suitable for applications like molecular sieves and water purification membranes.

3. Template Substitution Method

The template substitution method, also known as the organic foam impregnation method, employs organic foam (typically spongy polyurethane) saturated with a ceramic slurry. After burning away the organic material, the ceramic body is sintered to produce porous ceramic products. This method is cost-effective and practical for achieving high porosity (70-95%).

4. Direct Foaming Method

The direct foaming method involves generating a dispersed gas phase in a ceramic suspension containing ceramic materials, water, binders, surfactants, and gel agents. This technique has been used to create porous ceramics with varying porosities, ranging from 20% to 80%.

Each of these methods has its applications and areas of success. The choice of method significantly impacts the precise control of the porous ceramic structure, including pore size, shape, and distribution. Additionally, the strength of porous ceramics depends on the connection strength between aggregate particles, necessitating a balanced relationship between porosity and strength.

Porous ceramics possess exceptional thermal resistance, low volume heat capacity, low density, and low thermal conductivity due to their high porosity. These materials find applications in diverse fields such as metallurgy, chemistry, environmental protection, energy, and biology. Notably, they play a crucial role in the realm of vape.

The ceramic atomizing core, a standard component in high-quality e-cigarettes, employs a microporous ceramic structure. These ceramic atomizing cores exhibit micrometer or submicrometer apertures, ensuring precise and efficient vaporization. In addition to atomizing cores, ceramic oil guide pipes also utilize porous ceramics to enhance the vape experience.

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