Accelerating sample preparation of graded thermoelectric materials using an automatic powder feeding system

Hua-Yan Pu , Rong-Qing Xie , Yan Peng , Yang Yang , Shi-Yang He , Jun Luo , Yi Sun , Shao-Rong Xie , Jun Luo

Advances in Manufacturing ›› 2019, Vol. 7 ›› Issue (3) : 278 -287.

PDF
Advances in Manufacturing ›› 2019, Vol. 7 ›› Issue (3) : 278 -287. DOI: 10.1007/s40436-019-00269-y
Article

Accelerating sample preparation of graded thermoelectric materials using an automatic powder feeding system

Author information +
History +
PDF

Abstract

In recent years, the development of techniques for the controlled preparation of functional graded materials (FGMs) has become a vigorous research field. In this study, to improve the efficiency and accuracy of sample preparations, an automated feeding system based on gravimetric principles for dry powder with three dosing feeders is designed and realized. The feeding rate and accuracy can be regulated by coordinating the protruded length L (mm) and rotational speed V (r/min) of the feeder stirrer. To demonstrate this automatic sample preparation system, the well-known thermoelectric material Bi xSb2−xTe3 (x = 0.3, 0.4, 0.5, 0.6, 0.7 and 0.8) is selected and prepared by the developed system, and the composition distribution of the functional graded material is characterized. Experimental results show that the Bi xSb2−xTe3 (x = 0.3–0.8) functionally graded material crystalizes in the rhombohedral phase after hot-pressing sintering and annealing and the prepared sample has a good gradient composition distribution. This verifies the reliability and accuracy of the feeding system. The concept of samples with a gradient component and application of the automatic powder feeding system could considerably accelerate the research and development of new materials.

Keywords

Powder feeding / Automatic system / Functional graded material / Thermoelectric

Cite this article

Download citation ▾
Hua-Yan Pu, Rong-Qing Xie, Yan Peng, Yang Yang, Shi-Yang He, Jun Luo, Yi Sun, Shao-Rong Xie, Jun Luo. Accelerating sample preparation of graded thermoelectric materials using an automatic powder feeding system. Advances in Manufacturing, 2019, 7(3): 278-287 DOI:10.1007/s40436-019-00269-y

登录浏览全文

4963

注册一个新账户 忘记密码

References

[1]

Wu Y, Yang J, Chen S, et al. Thermo-element geometry optimization for high thermoelectric efficiency. Energy, 2018, 147: 672-680.

[2]

Zhu T, Hu L, Zhao X, et al. New insights into intrinsic point defects in V2VI3 thermoelectric materials. Adv Sci, 2016, 3(7): 1600004.

[3]

Yang S, Evans JRG. Metering and dispensing of powder; the quest for new solid free forming techniques. Powder Technol, 2007, 178(1): 56-72.

[4]

Norton FH. Elements of ceramics, 1952, Boston: Addison-Wesley Press

[5]

Mott M, Evans JRG. Zirconia/alumina functionally graded material made by ceramic ink jet printing. Mater Sci Eng A, 1999, 271(12): 344-352.

[6]

Gupte AG, Kladders H, Struth H (1982) Device and process for drawing off very small quantities of powder. US Patent 4,350,049, 21 Sept 1982

[7]

Douche JP, Coulon JC, Bouttier P (1992) Device for metering pulverulent materials. US Patent 5,104,230, 14 Apr 1992

[8]

Besenhard MO, Fathollahi S, Siegmann E, et al. Micro-feeding and dosing of powders via a small-scale powder-pump. Int J Pharm, 2017, 519(1–2): 314-322.

[9]

Edwards D. Applications of capsule dosing techniques for use in dry powder inhalers. Therapeutic Delivery, 2010, 1(1): 195-201.

[10]

Chen X, Seyfang K, Steckel H. Development of a micro dosing system for fine powder using a vibrating capillary. Part 1: the investigation of factors influencing on the dosing performance. Int J Pharm, 2012, 433(1–2): 34-41.

[11]

Chen X, Seyfang K, Steckel H. Development of a micro-dosing system for fine powder using a vibrating capillary. Part 2: the implementation of a process analytical technology tool in a closed-loop dosing system. Int J Pharm, 2012, 433(1–2): 42-50.

[12]

Yang S, Evans JRG. Computer control of powder flow for solid freeforming by acoustic modulation. Powder Technol, 2003, 133(1): 251-254.

[13]

Qi L, Zeng X, Zhou J, et al. Stable micro-feeding of fine powders using a capillary with ultrasonic vibration. Powder Technol, 2011, 214(2): 237-242.

[14]

Lu X, Yang S, Evans JRG. Ultrasound-assisted microfeeding of fine powders. Particuology, 2008, 6(1): 2-8.

[15]

Lu X, Yang S, Evans JR. Microfeeding with different ultrasonic nozzle designs. Ultrasonics, 2009, 49(6): 514-521.

[16]

Tardos GI, Lu Q. Precision dosing of powders by vibratory and screw feeders: an experimental study. Adv Powder Technol, 1996, 7(1): 51-58.

[17]

Matsusaka S, Urakawa M, Masuda H. Micro-feeding of fine powders using a capillary tube with ultrasonic vibration. Adv Powder Technol, 1995, 6(4): 283-293.

[18]

Crowder TM. Precision powder metering utilizing fundamental powder flow characteristics. Powder Technol, 2007, 173(3): 217-223.

[19]

Hickey AJ, Concessio NM. Flow properties of selected pharmaceutical powders from a vibrating spatula. Part Part Syst Charact, 2010, 11(6): 457-462.

[20]

Yang J, Chen R, Fan X, et al. Thermoelectric properties of silver-doped n-type Bi2Te3-based material prepared by mechanical alloying and subsequent hot pressing. J Alloys Compd, 2006, 407(1): 330-333.

Funding

National Key Research and Development Program of China(2018YFB0703600)

National Natural Science Foundation of China http://dx.doi.org/10.13039/501100001809(51772186)

Science and Technology Commission of Shanghai Municipality http://dx.doi.org/10.13039/501100003399(16441909400)

Shanghai Rising-Star Program(17QA1401500)

Shanghai Young Eastern Scholar Program(QD2016029)

Shanghai Sailing Program under(17YF1406200)

AI Summary AI Mindmap
PDF

157

Accesses

0

Citation

Detail

Sections
Recommended

AI思维导图

/