Molybdenum, a refractory metal with high melting point and excellent electrical conductivity, finds numerous applications in various industries. The unique combination of physical and chemical properties of molybdenum sheet makes them highly suitable for use in a range of high-temperature, high-radiation, and corrosive environments. However, during the manufacturing process or under certain operational conditions, abnormal surface morphology may arise on the surface of molybdenum sheet. This abnormal morphology can significantly affect the performance and reliability of these plates in various applications. Therefore, it is crucial to investigate the causes and effects of such surface abnormalities. The aim of this article is to present an overview of the current understanding of the abnormal surface morphology of molybdenum sheet.
This article presents a review of relevant literature, including peer-reviewed articles, technical reports, and conference proceedings. The search was conducted using electronic databases, such as ScienceDirect, PubMed, and Scopus, using keywords related to molybdenum sheet, surface morphology, and abnormal features. The articles selected for review were published between 2010 and 2023.
Abnormal surface morphology of molybdenum sheet has been observed during manufacturing and operational stages. The most common features observed include surface roughness, pitting, grain boundaries, and cracking. Surface roughness is caused by non-uniform etching or deposition processes during manufacturing. Pitting is a result of localized corrosion or mechanical damage, while grain boundaries and cracking are often associated with material fatigue or stress concentration.
The presence of abnormal morphology on the surface of molybdenum sheet can significantly affect their performance. For example, rough surfaces can lead to poor interface bonding in electronic devices, while pitting and cracking can reduce the fatigue resistance and structural integrity of the plates. To mitigate these effects, several techniques such as mechanical polishing, chemical etching, and thermal treatment have been employed to improve the surface quality of molybdenum sheet.
Abnormal surface morphology on molybdenum sheet can arise during manufacturing or operational stages and can significantly affect their performance. A comprehensive understanding of the causes and effects of these abnormalities is essential for improving the quality and reliability of molybdenum sheet in various applications. Future research should focus on developing advanced characterization techniques to study the surface morphology at the nanoscale and exploring new processing methods to improve the surface quality of molybdenum sheet.