PH Tester Gauge Repeatability and Reproducibility Study for WO3 Nanostructure Hydrothermal Growth Process

2014 International Conference on Manufacturing, Optimization, Industrial and Material Engineering

Rashid, Amirul Abd^1,2 ; Saad, Nor Hayati^2 ; Sheng, Daniel Bien Chia^1 ; Yee, Lee Wai^1

MIMOS Berhad, Technology Park Malaysia, Kuala Lumpur, 57000, Malaysia^1

Micronanoelectro Mechanical System Laboratory (MINEMS), Faculty of Mechanical Engineering, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia^2

关键词: Facile synthesis;    Gauge repeatability;    Hydrothermal growth;    Measuring procedure;    PH measurements;    pH value;    Reproducibilities;    Tungsten trioxide;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/58/1/012018/pdf
DOI  :  10.1088/1757-899X/58/1/012018

来源: IOP

【 摘 要 】

PH value is one of the important variables for tungsten trioxide (WO3) nanostructure hydrothermal synthesis process. The morphology of the synthesized nanostructure can be properly controlled by measuring and controlling the pH value of the solution used in this facile synthesis route. Therefore, it is very crucial to ensure the gauge used for pH measurement is reliable in order to achieve the expected result. In this study, gauge repeatability and reproducibility (GR&R) method was used to assess the repeatability and reproducibility of the pH tester. Based on ANOVA method, the design of experimental metrics as well as the result of the experiment was analyzed using Minitab software. It was found that the initial GR&R value for the tester was at 17.55 % which considered as acceptable. To further improve the GR&R level, a new pH measuring procedure was introduced. With the new procedure, the GR&R value was able to be reduced to 2.05%, which means the tester is statistically very ideal to measure the pH of the solution prepared for WO3hydrothermal synthesis process.