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HomeNewsAsiaThe NiTi powders were manufactured from the PREP process

The NiTi powders were manufactured from the PREP process

What is NiTi powder?

NiTi powder in cells culture with no growth inhibition. The medium's inductively coupled plasma (ICP) analysis also showed the separating rate in the different-size particles with the low separating rates of Ni and Ti. Although the NiTi alloy with high stability properties, a low degradation rate, and a low oxidation rate, the element of tolerance rate still needs to be concerned. The ICP data showed that the concentration of Ni increased with particle size. The data indicated that the NiTi alloy powder has the potential to be released and separated after being implanted in the living body. Our ICP data is followed the ISO10993 guideline to extract the element. The alloy was in the MEM medium with 8 hours of shaking for five days to take the sample to perform an ICP assay. In the future, the segregation in the micro-scale and the in vivo assay with long-term study should be performed to identify the devices from NiTi powder manufactured.

 

The NiTi powders were manufactured from PREP process.

However, the element composition is important to verify to prove the manufacturing method can deal with the NiTi alloy with stable yield and quality. The XRD was performed to assay the different powder sizes with or without the same crystal structure. The XRD data showed that the powders were the single phase contained only NiTi phase without macro segregation. The EDS assay was performed to confirm the composition of elements. The powders with sizes from 300–150 μm were used to apply in the EDS experiment (Fig. 2B, left panel). The EDS analysis with region mapping data showed the 300–150 μm powder with the Ni and Ti peaks. The point of EDS spectra also indicated the same results with region mapping. The powder diameter size can be influenced by electrode diameter and rotation speed. The ASM handbook has demonstrated that any kind of alloy with a rotating electrode process can use the formula to estimate the particle diameter. The equation is listed below it.

 

The PREP powder diameter

The PREP powder diameter is determined by d = K/ω D. where ω (rpm) is the electrode rotation speed, D (mm) is the diameter of the electrode, and K is experienced constant (influenced by the melting rate and material features)13. The effects of electrode rotation speed, plasma arc electric current, and electrode diameter on the powder size were studied. Progressive weight percentage analysis of each range of powders shows the relationship between process parameter and their corresponding powder size. The size distribution rate was analyzed to confirm the current and rotation speed can influence the powder size scale. The weight percentage of 300500 μm is slightly increased (83.4% to 92.4%), and 500 μm decreased by lowering arc electric current (from 80 A to 60 A).

In contrast, the 300 μm region has no obvious variation (Fig. 3A). This can be understood because the arc electrode current is independent of powder size in the 300 μm region. For lower rotation speed (8k rpm), the weight percentages of 500 μm, 300500 μm, and 300 μm size regions are approximately 12.7%, 83.4%, and 3.9%. Moderate increases up to 31.8% in the 300 μm region and a decrease to 3.1% in the 500 μm region are observed for increasing rotation speeds of 12k rpm. Arc electrode current of 60 A, similar tendency. This can be understood by the higher rotation speed causing more weight percentage powder in the small size range. Powders lie in the 300–500 μm size range and are the most abundant in our study.

 

Price of NiTi powder

NiTi powder particle size and purity will affect the product's Price, and the purchase volume can also affect the cost of NiTi powder. A large amount of large amount will be lower. The Price of NiTi powder is on our company's official website.

 

NiTi powder supplier

Mis-Asia is a reliable and high-quality global chemical material supplier and manufacturer. It has over 12 years of experience providing ultra-high quality chemicals and nanotechnology materials, including NiTi powder, nitride powder, graphite powder, sulfide powder, and 3D printing powder. If you are looking for high-quality and cost-effective NiTi powder, you are welcome to contact us or inquire any time.

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