A Partitioning Grinding Method for Complex-Shaped Stone Based on Surface Machining Complexity

Thickness is one of the key indicators characterizing the quality and functional properties of coatings. Various indirect methods (electromagnetic, radiation, optical) most often used in practice to measure thickness are based on the functional dependence of a particular physical parameter of the system «base – coating» on the coating thickness. The sensitivity of these procedures to the certain properties of coatings imposes the main restriction to the accuracy of measurements. Therefore, the development and implementation of the approaches based on direct measurements of geometric parameters of the coating appears expedient. These methods often belong to the class of «destructive» and, in addition to measuring instruments, require the use of special equipment. To ensure the uniformity of measurements in the laboratory or technological control, these methods are isolated as a separate procedure (method) and must undergo metrological certification in accordance with GOST R 8.563–2009. We present implementation, metrological certification and practical application of the method for measuring thickness of coatings by crater-grinding method. The principles of technical implementation of test equipment, measurement procedure and calculation formulas are described. The results of evaluating the accuracy indicators of the proposed procedure by calculation and experimental methods are presented. In both cases, the relative error did not exceed 6%. The applicability of the developed technique is shown for a wide range of coating materials (from soft metals to superhard ceramics) of different thickness (with from units to hundreds of micrometers). Apart from the goals of process control and outgoing inspection, the method can be recommended as a reference measurement procedure for calibration of measures and adjusting samples for various types of thickness gauges.

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Fine ceramics (advanced ceramics, advanced technical ceramics). Determination of coating thickness by crater-grinding method

10.3403/30165972 ◽

2009 ◽

Keyword(s):

Coating Thickness ◽

Advanced Ceramics ◽

Grinding Method ◽

Technical Ceramics ◽

Fine Ceramics

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Solvent-Drop Grinding Method: Efficient Synthesis, DPPH Radical Scavenging and Anti-diabetic Activities of Chalcones, bis-chalcones, Azolines, and bis-azolines

Current Organic Synthesis ◽

10.2174/1570179412666150122230447 ◽

2015 ◽

Vol 12 (2) ◽

pp. 220-228 ◽

Cited By ~ 38

Author(s):

Sobhi Gomha ◽

Sayed Riyadh ◽

Mohamed Abdalla

Keyword(s):

Radical Scavenging ◽

Efficient Synthesis ◽

Dpph Radical ◽

Grinding Method ◽

Dpph Radical Scavenging

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Development and Application of Seed Coating Agent for the Control of Major Soil-Borne Diseases Infecting Wheat

Agronomy ◽

10.3390/agronomy9080413 ◽

2019 ◽

Vol 9 (8) ◽

pp. 413 ◽

Cited By ~ 3

Author(s):

Ren ◽

Chen ◽

Ye ◽

Su ◽

Xiao ◽

...

Keyword(s):

Inhibitory Effect ◽

Seed Coating ◽

Practical Application ◽

Active Constituent ◽

Coating Agent ◽

Grinding Method ◽

Fungal Inhibition ◽

Sharp Eyespot ◽

Coating Agents ◽

Seed Germination Test

In order to reduce the usage amount of pesticide fertilizers and protect the natural environment, seed coating agents are receiving increased wide concern. In this study, the active constituent (pesticide) and inactive components (surfactants and film former) of the seed coating agents were screened and optimized by the wet sand processing superfine grinding method. The fungal inhibition test of pesticides showed that thifluzamide, fludioxonil, pyraclostrobin, and difenoconazole have an obvious fungal inhibitory effect on wheat sharp eyespot, take-all, and root rot. LAE-9 and polyacrylamide + carboxymethyl cellulose (CMC) is recommended for the safe surfactant and film former, respectively, based on the seed germination test. Moreover, 6% difenoconazole · fludioxonil flowable concentrate for seed coating (FSC) stimulates the seedling growth of wheat, advances the growth of root, and improves biomass in the field trial, meanwhile, the control efficiency reached above 80%. Thus, we suggested it can be used as an effective seed coating agent for the control of soil-borne diseases in wheat. The seed coating agent has the characteristics of disease prevention, increasing crop yield, and safety of environment, which is of significance in practical application.

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