{"title":"约翰逊量块的摩擦和附着力","authors":"A. Breki, Michael Nosonovsky","doi":"10.1680/jsuin.22.01083","DOIUrl":null,"url":null,"abstract":"Johansson gauge blocks (“Jo blocks”) are made of steel and used for precision length measurement. Their surface is very smooth, and two blocks can adhere to each other, however, the strong adhesion occurs only after the sliding (wringing). Various hypotheses explaining wringing and adhesion mechanisms in the blocks have been suggested in the literature, including the role of intermolecular forces, oil surface tension, and air pressure. We study the frictional sliding of two Jo blocks against each other to obtain insights into the mechanisms of wringing. The results show an increase in the friction force with the sliding distance, which is consistent with the removal of the oxide film from the steel surface by wringing. This is likely the dominant mechanism of Jo block adhesion.","PeriodicalId":22032,"journal":{"name":"Surface Innovations","volume":" ","pages":""},"PeriodicalIF":2.7000,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Friction and adhesion of Johansson gauge blocks\",\"authors\":\"A. Breki, Michael Nosonovsky\",\"doi\":\"10.1680/jsuin.22.01083\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Johansson gauge blocks (“Jo blocks”) are made of steel and used for precision length measurement. Their surface is very smooth, and two blocks can adhere to each other, however, the strong adhesion occurs only after the sliding (wringing). Various hypotheses explaining wringing and adhesion mechanisms in the blocks have been suggested in the literature, including the role of intermolecular forces, oil surface tension, and air pressure. We study the frictional sliding of two Jo blocks against each other to obtain insights into the mechanisms of wringing. The results show an increase in the friction force with the sliding distance, which is consistent with the removal of the oxide film from the steel surface by wringing. This is likely the dominant mechanism of Jo block adhesion.\",\"PeriodicalId\":22032,\"journal\":{\"name\":\"Surface Innovations\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2022-12-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Surface Innovations\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1680/jsuin.22.01083\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Innovations","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1680/jsuin.22.01083","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Johansson gauge blocks (“Jo blocks”) are made of steel and used for precision length measurement. Their surface is very smooth, and two blocks can adhere to each other, however, the strong adhesion occurs only after the sliding (wringing). Various hypotheses explaining wringing and adhesion mechanisms in the blocks have been suggested in the literature, including the role of intermolecular forces, oil surface tension, and air pressure. We study the frictional sliding of two Jo blocks against each other to obtain insights into the mechanisms of wringing. The results show an increase in the friction force with the sliding distance, which is consistent with the removal of the oxide film from the steel surface by wringing. This is likely the dominant mechanism of Jo block adhesion.
Surface InnovationsCHEMISTRY, PHYSICALMATERIALS SCIENCE, COAT-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
5.80
自引率
22.90%
发文量
66
期刊介绍:
The material innovations on surfaces, combined with understanding and manipulation of physics and chemistry of functional surfaces and coatings, have exploded in the past decade at an incredibly rapid pace.
Superhydrophobicity, superhydrophlicity, self-cleaning, self-healing, anti-fouling, anti-bacterial, etc., have become important fundamental topics of surface science research community driven by curiosity of physics, chemistry, and biology of interaction phenomenon at surfaces and their enormous potential in practical applications. Materials having controlled-functionality surfaces and coatings are important to the manufacturing of new products for environmental control, liquid manipulation, nanotechnological advances, biomedical engineering, pharmacy, biotechnology, and many others, and are part of the most promising technological innovations of the twenty-first century.