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Journal articles on the topic 'Material blasted'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Tembo, Malugu, and Ombeni John Mdee. "Analysis of Ore Hand-Crushed Size Distribution for Grinding Process in the Artisanal and Small-Scale Gold Mines Production: A Case Study of Nholi Mine, Bahi District." Tanzania Journal of Engineering and Technology 41, no. 4 (2022): 95–105. http://dx.doi.org/10.52339/tjet.v41i4.763.

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In many parts of the world, artisanal and small-scale gold mines (ASGM) employed numbers of people compared to large-scale mines. The ASGM has been played a crucial role in poverty alleviation and rural development, particularly in developing countries. The mined ore is crushed and ground for beneficiation of gold. The grinding process involved the size reduction of blasted materials to acquire minerals of interest. This paper presents the size distribution of hand-crushed for blasted materials using sieve analysis and digital image processing. The sieve test results for hand-crushed blasted m

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Šulák, Ivo, Karel Obrtlík, and Ladislav Čelko. "High Temperature Low Cycle Fatigue Characteristics of Grit Blasted Polycrystalline Ni-Base Superalloy." Key Engineering Materials 665 (September 2015): 73–76. http://dx.doi.org/10.4028/www.scientific.net/kem.665.73.

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The present work is focused on the study of low cycle fatigue behavior of grit blasted nickel-base superalloy Inconel 713LC (IN 713LC). Grit blasting parameters are obtained. Button end specimens of IN 713LC in as-received condition and with grit blasted surface were fatigued under strain control with constant total strain amplitude in symmetrical cycle at 900 °C in air. Hardening/softening curves, cyclic stress-strain curve and fatigue life data of both materials were obtained. Both materials exhibit the same stress-strain response. It has not been observed any improvement or reduction of low

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3

Herceg, Vjekoslav, Mario Klanfar, Karolina Herceg, and Dubravko Domitrović. "SPECIFIC ENERGY CONSUMPTION OF MATERIAL HANDLING BY EXCAVATOR IN THE QUARRYING OF CRUSHED STONE." Rudarsko-geološko-naftni zbornik 38, no. 1 (2023): 83–92. http://dx.doi.org/10.17794/rgn.2023.1.8.

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A hydraulic excavator is widely used in crushed stone quarries to perform many different operations. Previous research on material handling by excavators is most often based on laboratory testing and observation of soil materials and the digging forces in them. These results are very difficult to transfer to fieldwork during the quarrying process. Therefore, in this work, the energy consumption of an excavator while working in typical materials for a crushed stone quarry was investigated. The field measurements were performed on overburden, blasted rock material, boulders, and two different cr

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Melo, Rafaela, Angela Sales, Daniel Sales, and Rosane Oliveira. "EFFECT OF REPLACEMENT OF NATURAL SAND WITH BLASTED COPPER SLAG ON MORTARS PHYSICAL AND MECHANICAL PROPERTIES." Rev. LatinAm. Metal. Mat. 41, no. 1 (2021): 74–87. https://doi.org/10.5281/zenodo.7397130.

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Environmental preservation is a widely discussed topic throughout society, due to heavy reliance on natural resources for survival on the planet. Rational use of raw materials and their proper disposal are on the agenda of the productive sectors’ major concerns. This work aimed to evaluate the feasibility of application of copper slag waste, after being used as an abrasive material, coming to be called blasted copper slag. It was intended to replace sand to blasted copper slag in mortars, into two fractions, named fine and coarse blasted slag sand, according to the number of times that w

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Griffiths, B. J., D. T. Gawne, and G. Dong. "A Definition of the Topography of Grit-Blasted Surfaces for Plasma Sprayed Alumina Coatings." Journal of Manufacturing Science and Engineering 121, no. 1 (1999): 49–53. http://dx.doi.org/10.1115/1.2830574.

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This paper describes the topographical implications of grit blasted surfaces on plasma sprayed alumina. The transition of the grit blasted surface from raw material to correctly blasted is described in terms of surface heights, height distribution, spacings and texture. The influence of embedded grit is shown to be significant. The individual particles of alumina impacting the surface are classified into two types, these being disc splats and splash splats. Their deposition relationships with regard to surface topography and adhesion is explained with reference to the two types of splat.

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Kukolj, Ivan, Bernd Oberdorfer, and Finn Ouchterlony. "Internal Fractures After Blasting Confined Rock and Mortar Cylinders." BHM Berg- und Hüttenmännische Monatshefte 164, no. 10 (2019): 422–30. http://dx.doi.org/10.1007/s00501-019-00899-6.

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Abstract Blast-induced fines in rock negatively influence multiple aspects of raw-mineral sustainability. The Austrian Science Fund (FWF) sponsored a project to investigate the cause of the fines by studying blast fragmentation through small-scale blast tests and numerical simulations. The paper covers the experimental part of the project focusing on internal blast-induced fracturing and related mechanisms. The blast tests were done by blast-loading confined granite and mortar cylinders. The blast-driven dynamic cracking at the end face of the cylinder opposite to the initiation point was film

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Bagaskara, Bobby, Janiar Pitulima, and Delita Ega Andini. "Pengaruh Fragmentasi Hasil Peledakan Batugranit Terhadap Produktivitas Hopper Crusher Di PT Bumi Warna Agung Perkasa Desa Air Mesu Kabupaten Bangka Tengah." MINERAL 3, no. 2 (2018): 31–35. http://dx.doi.org/10.33019/mineral.v3i2.1585.

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The destroyed process or to split the rock with blasted system have effective value and good economic compared with mechanical tools method. Blasted activity effective become is anothere standard the success of activity loading processing to influence achievement targets of mining productivity. This research aim to increasing the productivity hopper crusher baited rate and minimize total percentage of boulder, so that material reduction activity in hopper crusher become was more effective. The study was on 14 blasted is project from PT Bumiwarna Agung Perkasa. Data this research consist of geo

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Yoo, Seong-Yeoul, Jin-Hyung Lee, Hyung-Jin Shin, and Chan-Gi Park. "Mechanical and Fracture Properties of Steel/GFRP Hybrid Panels for an Improved Moveable Weir after Exposure to Accelerated Natural Environmental Conditions." Applied Sciences 9, no. 7 (2019): 1423. http://dx.doi.org/10.3390/app9071423.

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This study evaluated the performance of a hybrid panel in an improved moveable weir after exposure to accelerated environmental climate conditions. When exposed to a river environment, corrosion problems on improved moveable weir steel panels can occur. To address this, a hybrid panel with structure layering glass fiber-reinforced polymer (GFRP) panels on both sides of the steel panel was used. The steel was, therefore, not exposed to the outside. However, this hybrid panel is a structure that uses a mixture of two materials with different properties and there is the possibility of performance

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9

Kim, Aran, Shigenobu Kainuma, and Muye Yang. "Surface Characteristics and Corrosion Behavior of Carbon Steel Treated by Abrasive Blasting." Metals 11, no. 12 (2021): 2065. http://dx.doi.org/10.3390/met11122065.

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The effects of blasting with metallic steel grit and non-metallic alumina grit on steel surface characteristics were evaluated. These abrasives are generally used at construction sites and in vacuum blasting. Milled steel specimens were used to investigate the effect of the blasting conditions on surface properties. The effect of difference in surface properties on the adhesion strength and corrosion behavior were measured through adhesion tests, polarization curves, and electrochemical impedance spectroscopy. The limitations of blasting were evaluated using corroded steel specimens, as were t

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Kuscu, Ebru, Andrea Klink, Sebastian Spintzyk, Pablo Kraemer Fernandez, and Fabian Huettig. "Bonding Interface and Repairability of 3D-Printed Intraoral Splints: Shear Bond Strength to Current Polymers, with and without Ageing." Materials 14, no. 14 (2021): 3935. http://dx.doi.org/10.3390/ma14143935.

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This in-vitro study investigates the bonding interfaces reached by the conditioning of a splint material additively manufactured by digital light processing (AM base) as well as the shear bond strength (SBS) of resins bonded to these surfaces (repair material). Therefore, the AM base was either stored in dry for 12 h or wet environment for 14 days to simulate ageing by intraoral wear. The dry and wet group was bonded after physical and/or chemical conditioning to cylinders made from polymethylmethacrylate or four novel polymers allowing splint modifications. Blasted and methylmethacrylate (MMA

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OOTOMO, Tatsuya, Kazumichi SHIMIZU, Takafumi FUNABIKI, and Nobuki YOSHIZAKI. "109 Analysis of Material Plastic Strain Process in Shot-Blasted Surfaces." Proceedings of Conference of Hokkaido Branch 2011.50 (2011): 17–18. http://dx.doi.org/10.1299/jsmehokkaido.2011.50.17.

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12

Merklein, Marion, Maria Löffler, Daniel Gröbel, and Johannes Henneberg. "Material flow control in sheet-bulk metal forming processes using blasted tool surfaces." MATEC Web of Conferences 190 (2018): 13003. http://dx.doi.org/10.1051/matecconf/201819013003.

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Highly-integrated and closely-tolerated functional components can be produced by sheet-bulk metal forming which is the application of bulk forming operations on sheet metals. These processes are characterized by a successive and/or simultaneous occurrence of different load conditions such as stress and strain states which reduce the geometrical accuracy of the functional elements. Thus, one main challenge within sheet-bulk metal forming is the identification of methods to control the material flow and thus to improve the product quality. One suitable approach is to control the material flow by

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13

Skiba, Tárcio Hiroshi Ishimine, Eduardo C. Kalil, Adriano Piattelli, and Jamil Awad Shibli. "Human Histological Analysis of Early Bone Response to Immediately Loaded Narrow Dental Implants with Biphasic Calcium Phosphate® Grid-Blasted Surface Treatment: A Case Report." Dentistry Journal 11, no. 7 (2023): 177. http://dx.doi.org/10.3390/dj11070177.

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Implant surface topography using bioactive material provides faster bone-to-implant healing. This histological report described the analysis of human bone tissue around an immediately loaded implant, with BPC® (Biphasic Calcium Phosphate) grit-blasted surface treatment, after two months of healing. Two temporary mini-implants (2.8 × 10 mm) with BPC® grit-blasting surfaces were placed and immediately loaded to retain a complete interim denture. After a 60-day healing period, one mini-implant was removed for histologic analysis. The ground section showed the whole implant surrounded by healthy p

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Merklein, Marion, Maria Löffler, Daniel Gröbel, and Johannes Henneberg. "Investigation on blasted tool surfaces as a measure for material flow control in sheet-bulk metal forming." Manufacturing Review 6 (2019): 10. http://dx.doi.org/10.1051/mfreview/2019012.

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Highly integrated and closely tolerated functional components can be produced by sheet-bulk metal forming which is the application of bulk forming operations on sheet metal. These processes are characterized by a successive and/or simultaneous occurrence of different load conditions which reduce the geometrical accuracy of the parts. One challenge within sheet-bulk metal forming is the identification of methods to control the material flow to improve the product quality. A suitable approach is the local modification of the tribological conditions. Within this study, requirements regarding the

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15

Udomlertpreecha, Suparat, Prasit Pavasant, and Boonrat Lohwongwatana. "Surface Modification of Titanium Alloys Using Alumina Particles Blasting for Biomedical Applications." Advanced Materials Research 983 (June 2014): 135–40. http://dx.doi.org/10.4028/www.scientific.net/amr.983.135.

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Ti-based bulk metallic glass (BMG) is a new class of titanium alloys that exhibits excellent properties for biomedical applications. They have high strength, good corrosion resistance, low elastic modulus and satisfactory biocompatibility. Therefore, Ti-based BMG is an excellent alternative material to be used in biomedical application. Titanium alloy with a nominal composition of the Ti40Zr10Co36Pd14 was synthesized by replacing Cu with Co in a better-known bulk glass forming composition. Coin-shape samples with a diameter of 15 mm and thickness of 1 mm were prepared by arc-melting and castin

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16

Ektessabi, Ali, and Ann Wennerberg. "EFFECTS OF SURFACE TOPOLOGY ON TITANIUM RELEASE FROM IMPLANTS INTO RABBIT BONE AFTER 1-YEAR FOLLOW-UP." International Journal of PIXE 05, no. 02n03 (1995): 145–52. http://dx.doi.org/10.1142/s0129083595000174.

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The material composition and surface structure of dental and orthopaedic implants have important effects on integration of the implants with the surrounding bone, and at the same time, the release of the constituent elements of the implants into the surrounding tissues. It is the aim of this paper to study the degree of release of Ti in relation to the surface roughness of the implants. For this purpose, screw shaped implants were prepared with two different surface topographies; one group was left as-machined, i.e. as machine-turned surface, and the second group was blasted with 25 µm Al2O3 p

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17

Kareem, B. "Development of a Raw Material Requirement Balancing Model for a Production Process." Advanced Materials Research 824 (September 2013): 490–98. http://dx.doi.org/10.4028/www.scientific.net/amr.824.490.

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Attainment of accuracy in raw materials mix for production processes has been the major problem in many production organizations in developing countries. Effects of unequal proportions of material required for a production process are not fully considered in the past studies. This study modeled the raw material requirements in a production process using proportionality based mixed linear programming approach. The objective was to find optimal mix of raw materials for the production of a unit tonnage of a product. The performance of the model was tested by comparing it with alternatively formul

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18

Dremin, A. V., and V. S. Velikanov. "Regarding the particle-size composition of blasted rocks." Mining Industry Journal (Gornay Promishlennost), no. 4/2023 (August 25, 2023): 73–78. http://dx.doi.org/10.30686/1609-9192-2023-4-73-78.

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Decreasing ore grades combined with increasing pit depths call for the development of solutions to ensure efficient interaction within the mine-to-mill concept, which should be adapted to each specific mining operation and will optimize the production costs. The aim of the study was to develop a methodological approach to assess the particle size distribution of material within the mine-to-mill process. The study applied a comprehensive approach, which includes scientific analysis and generalization of previously published research results. From the methodological point of view, the study was

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19

Zietz, Carmen, Andreas Fritsche, Birgit Finke, et al. "Analysis of the Release Characteristics of Cu-Treated Antimicrobial Implant Surfaces Using Atomic Absorption Spectrometry." Bioinorganic Chemistry and Applications 2012 (2012): 1–5. http://dx.doi.org/10.1155/2012/850390.

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New developments of antimicrobial implant surfaces doped with copper (Cu) ions may minimize the risk of implant-associated infections. However, experimental evaluation of the Cu release is influenced by various test parameters. The aim of our study was to evaluate the Cu release characteristicsin vitroaccording to the storage fluid and surface roughness. Plasma immersion ion implantation of Cu (Cu-PIII) and pulsed magnetron sputtering process of a titanium copper film (Ti-Cu) were applied to titanium alloy (Ti6Al4V) samples with different surface finishing of the implant material (polished, hy

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20

Danielsson, M., E. Söderström, H. Schunnesson, et al. "Predicting rock fragmentation based on drill monitoring: A case study from Malmberget mine, Sweden." Journal of the Southern African Institute of Mining and Metallurgy 122, no. 3 (2022): 1–11. http://dx.doi.org/10.17159/2411-9717/1587/2022.

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Fragmentation analysis is an essential part of the optimization process in any mining operation. The costs of loading, hauling, and crushing the rock are strongly influenced by the size distribution of the blasted rock. Several direct and indirect methods are used to analyse or predict fragmentation, but none is entirely applicable to fragmentation assessment in sublevel caving mines, mainly because of the limitations imposed by the underground environment and the lack of all the required data to adequately describe the rock mass. Over the past few years, measurement while drilling (MWD) data

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21

Yoo, Woo Sik, Quan Qia Jin, Dong Sam Park, Eun Je Seong, and Jin Yong Han. "Characteristics of Micro-Precision Machining of Glasses by Powder Blasting." Key Engineering Materials 364-366 (December 2007): 897–902. http://dx.doi.org/10.4028/www.scientific.net/kem.364-366.897.

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Powder blasting is similar to sand blasting and effectively removes hard and brittle materials. With an increase in the need for machining of ceramics, semiconductors, electronic devices and LCDs, micro abrasive jet machining has become a useful technique for micro-machining. In this study, we first investigated the effects of the blasted glass surface’s characteristics and shape under different blasting parameters; second, we examined the predictive models for material removal and surface roughness that have been developed in terms of blasting pressure, scanning speed and abrasive flow, using

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22

Sagisaka, Yoshihiro, Kunio Hayakawa, Tamotsu Nakamura, Itaru Ishibashi, and Toshinari Nakakura. "Influence of Flow Stress on Lubricating Abilty of Environmentally-Friendly Lubricant for Aluminum Alloy Cold Forging." Advanced Materials Research 966-967 (June 2014): 301–10. http://dx.doi.org/10.4028/www.scientific.net/amr.966-967.301.

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Although the aluminum fluoride conversion coating has been a popular lubricant for aluminum cold forging in Japan, it has considerable environmental risks and troubles in cost. Double-layer-type environmentally-friendly solid lubricant films have been developed as the substitute. One of the lubricants was evaluated by a friction test based on the combined forward spline-backward can extrusion. The lubricating ability of the double-layer-type lubricant changed through the year. It showed best ability in the rainy season in Japan. Next, the double-layer-type lubricant was applied on three kinds

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23

Emadinia, Omid, Alexandra Martins Ramalho, Inês Vieira de Oliveira, Geoffrey A. Taber, and Ana Reis. "Influence of Surface Preparation on the Interface of Al-Cu Joints Produced by Magnetic Pulse Welding." Metals 10, no. 8 (2020): 997. http://dx.doi.org/10.3390/met10080997.

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Magnetic pulse welding can be considered as an advanced joining technique because it does not require any shielding atmosphere and input heat similar to conventional welding techniques. However, it requires comprehensive evaluations for bonding dissimilar materials. In addition to processing parameters, the surface preparation of the components, such as target material, needs to be evaluated. Different surface conditions were tested (machined, sand-blasted, polished, lubricated, chemically attacked, and threaded) using a fixed gap and standoff distance for welding. Microstructural observations

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Chacun, Doriane, Arnaud Lafon, Nicolas Courtois, Patrice Margossian, Kerstin Gritsch, and Brigitte Grosgogeat. "Compared osseointegration of a novel zirconia material and titanium on blasted implants in dogs." Clinical Oral Implants Research 31, S20 (2020): 14. http://dx.doi.org/10.1111/clr.10_13643.

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Paulitsch-Fuchs, Astrid H., Lukas Wolrab, Nicole Eck, Nigel P. Dyer, Benjamin Bödendorfer, and Birgit Lohberger. "TiAl6V4 Alloy Surface Modifications and Their Impact on Biofilm Development of S. aureus and S. epidermidis." Journal of Functional Biomaterials 12, no. 2 (2021): 36. http://dx.doi.org/10.3390/jfb12020036.

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One of the most serious complications following joint replacement surgeries are periprosthetic infections (PIs) arising from the adhesion of bacteria to the artificial joint. Various types of titanium–aluminum–vanadium (TiAl6V4) alloy surface modifications (coatings with silver (Ag), titanium nitride (TiN), pure titanium (cpTi), combinations of cpTi and hydroxyapatite (HA), combinations of cpTi and tricalcium phosphate (TCP), and a rough-blasted surface of TiAl6V4) have been investigated to assess their effects on biofilm development. Biofilms were grown, collected, and analyzed after 48 h to

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Balakrishnan, Rajasekaran, Kumaresan Govindaraj, Arulprakasajothi Mahalingam, and Beemkumar Nagappan. "Exploring thermal response in aluminum heat sinks with variable surface roughness for enhanced cooling." Thermal Science, no. 00 (2024): 13. http://dx.doi.org/10.2298/tsci230916013b.

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The shrinking size and increasing power consumption of electronic products also make their thermal management challenging. Poor thermal management results in increased temperature of the electronic component, ultimately leading to the failure of the element. Thermal management of electronic devices is assisted by passive techniques such as heat sinks. Phase change material-filled heat sinks attract industries, as they are compact and do not require frequent maintenance. In this study, heat sinks with internal surface modifications, i.e., engraving and grit blasting, are developed. The heat sin

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Nishikawa, Chihiro, Naohide Mizukuchi, Akihiko Tomie, Keita Shimada, Masayoshi Mizutani, and Tsunemoto Kuriyagawa. "Characteristics of Thick Film Deposition in Powder Jet Machining." International Journal of Automation Technology 7, no. 6 (2013): 630–37. http://dx.doi.org/10.20965/ijat.2013.p0630.

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Powder jet machining can be used for both material removal (abrasive jet machining) and material deposition processes (powder jet deposition) by changing the powder spray conditions. The transition from the removal to the deposition is investigated. The transition between these two phenomena, removal and deposition, is studied through simulating the impact phenomena of two alumina particles with a glass substrate using the Smoothed Particle Hydrodynamics (SPH) method in this study. Crystalline structures of an alumina film created were observed with a Transmission Electron Microscope (TEM). Ob

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Youn, Kuk Tae, Young Sang Na, Jong Hoon Lee, Young Mok Rhyim, Wee Do Yoo, and Chan Gyu Lee. "Effect of Surface Condition on Melt-Out of Die-Casting Mould." Solid State Phenomena 118 (December 2006): 509–14. http://dx.doi.org/10.4028/www.scientific.net/ssp.118.509.

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In order to understand the melt-out mechanism of H13 die casting mould material, microstructural investigation was conducted for the immersion-tested surface in Al-alloy melt. The surface condition of H13 tool steel was modified by varying nitriding conditions and by surface blasting. In particular, long-term behavior of melt-out phenomena during immersion testing of up to 43 hours was focused in this article. It was observed that an ion-nitrided H13 surface showed higher resistance towards melt-out than a gas-nitrided or blasted surface. This was related to the surface layers that are normall

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Taha, Ahmed K., Zhengguo Gao, and Dahai Huang. "The Numerical Investigation of Aluminum Foam-protected Reinforced Concrete Slabs under Blast Loading Using AUTODYN-3D." MATEC Web of Conferences 206 (2018): 01014. http://dx.doi.org/10.1051/matecconf/201820601014.

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Aluminum foam is a lightweight material with high energy absorption capacity. In this study A Nonlinear three-dimensional hydrocode numerical simulation was carried out using autodyn-3d, which is an extensive code dealing with explosion problems. In this simulation, a high explosive material (comp B) is blasted against several concrete panels. The model was first validated using experimental tests carried out by Chengqing and has shown good results. Several numerical tests were carried out to study two parameters that affect the deflection of reinforced concrete panels. The parameters included

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Edelmann, André, Lisa Riedel, and Ralf Hellmann. "Realization of a Dental Framework by 3D Printing in Material Cobalt-Chromium with Superior Precision and Fitting Accuracy." Materials 13, no. 23 (2020): 5390. http://dx.doi.org/10.3390/ma13235390.

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We report on the generation of a cobalt-chromium dental framework with superior precision and fitting accuracy using selective laser melting. The objective of this study is the reduction of surface roughness and the possibility to manufacture a dental framework with high precision for passive fit with attachments, in particular a round tack. After selective laser melting, the dental framework is thermally post processed at 750 °C, shot-blasted with glass and highly polished. Nominal to actual 3D form deviation is analyzed by stripe light projection, revealing deviations being less than 250 μm,

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Nuruzzaman, D. M., A. Nakajima, and T. Mawatari. "Experimental Investigation on Roling-Sliding Contact Properties of Wc Cermet Coatings." DIU Journal of Science & Technology 4, no. 1 (2024): 50–56. https://doi.org/10.5281/zenodo.13690883.

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In this study, tribological properties of Hi-HVOF sprayed WC-Cr-Ni cermet coatings were investigated experimentally under lubri- cated rolling-sliding contact. Coatings were deposited onto the induction hardened carbon steel and carburized hardened steel materials. Substrate surfaces were prepared by axially grinding, blasting and circumferentially grinding.Under the operating conditions of contact pres- sure PH=1.4 GPa and slip ratio s=-28.0%, the effects of substrate hardness and substrate sur- face kind on the tribological properties of the cermet coating were examined. It was found thatcer

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Nanda, Suryajyoti, and B. K. Pal. "Analysis of Blast Fragmentation Using WipFrag." International Journal of Innovative Science and Research Technology 5, no. 6 (2020): 1561–66. http://dx.doi.org/10.38124/ijisrt20jun1086.

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Fragmentation is the process of breaking of solid in-situ rock mass into several smaller pieces which are being excavated or moved by material handling equipment. It is the major concern of any blasting operation. Information on the degree and size distribution of fragments within a blasted rock mass is essential for efficient loading, transport, crushing and milling operations. An automated image based granulometry system WipFrag is used to analyze the digital image of rock photographs to determine grain size distribution. The method was tested in Dongri Buzurg open-pit manganese mine of Maha

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Tzanakakis, Emmanouil-George, Maria Dimitriadi, Ioannis Tzoutzas, Petros Koidis, Spiros Zinelis, and George Eliades. "Effect of Water Storage on Hardness and Interfacial Strength of Resin Composite Luting Agents Bonded to Surface-Treated Monolithic Zirconia." Dentistry Journal 9, no. 7 (2021): 78. http://dx.doi.org/10.3390/dj9070078.

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Background: Durable bonding between resin composite luting agents (CLA) and zirconia is still a matter of controversy. The purpose of this study was to evaluate the effect of water storage on hardness and interfacial strength of three CLA, a non-adhesive (Multilink Automix/ML), an adhesive (Panavia F 2.0/PF) and a self-adhesive (PermaCem 2.0/PC), bonded to polished (CL) and grit-blasted (AL: 50 μm alumina, SJ: Sil-Jet + Monobond Plus silane) monolithic zirconia surfaces. Methods: CLA specimens (n = 5/cement, condition) were prepared, stored under dry conditions or immersed in water, and Vicker

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Heryadi, R., J. D. H. Utama, and A. V. Prasmoro. "Cost and fragmentation prediction of ammonium nitrate fuel oil versus bulk emulsion explosives." IOP Conference Series: Earth and Environmental Science 1422, no. 1 (2024): 012001. https://doi.org/10.1088/1755-1315/1422/1/012001.

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Abstract Blasting in mining industry, including the blasting pattern (burden and spacing) and explosive selection, is substantial to retrieve the desired mining products. This study aims to identify the comparisons of economic calculations and fragmentation between ANFO (Ammonium Nitrate Fuel Oil) and Bulk Emulsion explosives (BEE). The economic calculation measured the cost of explosives per unit of blasted material and the fragmentation result. The bulk emulsion cost equals the ANFO cost by extending the burden and spacing from 7 m to 8.33 m. The predicted average fragmentation of blasting u

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Bechtel, Stephan, Rouven Schweitzer, Maximilian Frey, Ralf Busch, and Hans-Georg Herrmann. "Material Extrusion of Structural Polymer–Aluminum Joints—Examining Shear Strength, Wetting, Polymer Melt Rheology and Aging." Materials 15, no. 9 (2022): 3120. http://dx.doi.org/10.3390/ma15093120.

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Generating polymer–metal structures by means of additive manufacturing offers huge potential for customized, sustainable and lightweight solutions. However, challenges exist, primarily with regard to reliability and reproducibility of the additively generated joints. In this study, the polymers ABS, PETG and PLA, which are common in material extrusion, were joined to grit-blasted aluminum substrates. Temperature dependence of polymer melt rheology, wetting and tensile single-lap-shear strength were examined in order to obtain appropriate thermal processing conditions. Joints with high adhesive

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Bechtel, Stephan, Rouven Schweitzer, Maximilian Frey, Ralf Busch, and Hans-Georg Herrmann. "Material Extrusion of Structural Polymer–Aluminum Joints—Examining Shear Strength, Wetting, Polymer Melt Rheology and Aging." Materials 15, no. 9 (2022): 3120. http://dx.doi.org/10.3390/ma15093120.

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Generating polymer–metal structures by means of additive manufacturing offers huge potential for customized, sustainable and lightweight solutions. However, challenges exist, primarily with regard to reliability and reproducibility of the additively generated joints. In this study, the polymers ABS, PETG and PLA, which are common in material extrusion, were joined to grit-blasted aluminum substrates. Temperature dependence of polymer melt rheology, wetting and tensile single-lap-shear strength were examined in order to obtain appropriate thermal processing conditions. Joints with high adhesive

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Andrade, W., M. Ribeiro, C. Lima, F. Santos, and F. Biulchi. "Pillar recovery using new wireless blasting technology: a case study in Vazante mine, Brazil." Journal of Mining Engineering and Research 3, no. 1 (2021): 20–25. http://dx.doi.org/10.35624/jminer2021.01.03.

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The application of explosives has never been considered as a major influencing factor during either the designing of a mine or the selection of the mining method. However, this has changed with the launch of WebGenTM wireless blasting system, which allowed underground mines to exploit their orebody applying methods previously not possible due to limitations imposed by the use of wired detonators. The wireless blasting system is based on magnetic induction communication, and its signal is capable of overcoming hundreds of meters through rock, water, and air, to reach individual primers in the b

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Ciobotaru, Ioana-Alina, Maria Stoicanescu, Roxana Budei, Anca Cojocaru, and Danut-Ionel Vaireanu. "Considerations Regarding Sandblasting of Ti and Ti6Al4V Used in Dental Implants and Abutments as a Preconditioning Stage for Restorative Dentistry Works." Applied Sciences 14, no. 16 (2024): 7365. http://dx.doi.org/10.3390/app14167365.

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Sandblasting materials used for dental restoration are a valuable preconditioning technique that enhances the physical properties and promotes osseointegration and cell adhesion. Triplicate groups of Ti medical grade 4 and Ti6Al4V were blasted with 16 series of various naturally occurring and synthetically produced spraying materials of controlled granulometry at three spraying durations each and two spraying pressures, and the results were tested for the determination of the surface roughness taken as an average of 80 points ±5 points for each particular series of operating parameters. SEM an

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Nebe, J. Barbara, Caroline Moerke, Susanne Staehlke, et al. "Complex Cell Physiology on Topographically and Chemically Designed Material Surfaces." Materials Science Forum 879 (November 2016): 78–83. http://dx.doi.org/10.4028/www.scientific.net/msf.879.78.

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A crucial factor for ingrowth of permanent implants in the bone is the rapid cellular acceptance. The topographical features often follow mechanical aspects for implant stability. But several of these implants fail due to insufficient cell adhesion. Cells are able to perceive the physico-chemical properties of their surrounding and to pass these signals into the cell to modulate their adhesion structures, growth or production of extracellular matrix. However, the complex cell physiology at the material interface is not yet fully understood, particular on stochastically structured topographies

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Isaia, G. C., and A. L. G. Gastaldini. "Concrete sustainability with very high amount of fly ash and slag." Revista IBRACON de Estruturas e Materiais 2, no. 3 (2009): 244–53. http://dx.doi.org/10.1590/s1983-41952009000300003.

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This article approaches concrete mix designs where cement is replaced by high amounts of slag and fly ash, with the purpose of turning it into a more sustainable construction material, that is, an authentic green concrete. Mix proportions with fly ash, ground-blasted furnace slag, and Portland cement were studied in binary and ternary mixtures for compressive strength levels of 40 MPa and 55 MPa. The replacement of cement with mineral additions ranged from 50% to 90% in mass. Mean decreases of 55% in the energy consumption, 78% in the CO² emissions, and 5% in the cost of the concrete m³, plus

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Taha, Ahmed K., Zhengguo Gao, Dahai Huang, and M. S. Zahran. "Numerical investigation of a new structural configuration of a concrete barrier wall under the effect of blast loads." International Journal of Advanced Structural Engineering 11, S1 (2019): 19–34. http://dx.doi.org/10.1007/s40091-019-00252-8.

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AbstractIn this study, a non-linear three-dimensional hydrocode numerical simulation was carried out using AUTODYN-3D, which is an extensive code dealing with explosion problems. A high explosive material (comp-B) is blasted against several concrete wall barriers. The model was first validated using referenced experimental tests and has shown good results. Several numerical models were carried out to study the effect of changing the shape of wall barrier from flat to convex curve and concave curve, and also investigated the effect of changing the angle of curvature. The results showed that cha

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Isa, Mohd Rashdan, Omar Suliman Zaroog, Muhammad Aiman Yunus, Vignesh Rao Sanny Bavu, and Norzulhilmi Rosmi. "Effect of Sandblasting Process on Mechanical Properties of ASTM A516 Grade 70 Steel." Key Engineering Materials 765 (March 2018): 222–26. http://dx.doi.org/10.4028/www.scientific.net/kem.765.222.

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Sandbalsting is a method used for surface treatment and at the same time this process also improves the mechanical properties of the material. ASTM A516 Grade 70 is widely used in industrial sector as it provides very good mechanical properties in tough conditions. The main usage of this material is in moderate and low operating services. This paper focus on the effect of sandblasting process on ASTM A516 Grade 70 on improving the mechanical properties and fatigue life of this material. Samples have been blasted with sand grade SAE G-80. The focus of this paper is the result of the microhardne

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Kuźniarski, Amadeusz, Weronika Huss, Tomasz Dąbrowa, and Edward Kijak. "Comparative Assessment of the Adhesion Forces of Soft Silicone Materials to the Denture Base Material (PMMA) Conditioned with Sandblasting." Materials 17, no. 14 (2024): 3439. http://dx.doi.org/10.3390/ma17143439.

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Background: In patients undergoing surgery for oral cancer, soft support materials are used to minimise trauma to the soft tissues. Silicone-based liners are widely used in prosthetic dentistry. A prerequisite for long-term Adhesion of the liner to the denture base is largely dependent on the surface preparation of the denture material. Objectives: The aim of the present study was to investigate whether surface preparation of the acrylic material by sandblasting increases the adhesion of the silicone support material to the acrylic denture plate. Material and Methods: The study included adhesi

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Vierzigmann, Ulrich, Johannes Koch, Marion Merklein, and Ulf Engel. "Material Flow in Sheet-Bulk Metal Forming." Key Engineering Materials 504-506 (February 2012): 1035–40. http://dx.doi.org/10.4028/www.scientific.net/kem.504-506.1035.

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Innovative trends like increasing component functionality, the demand for automotive lightweight constructions and the economic issue to optimize existing process chains, require new ways in manufacturing. Today, the traditional sheet metal and bulk metal forming processes are often reaching their limits if closely-tolerated complex functional components with variants have to be produced. A promising approach is the direct forming of high-precision shapes starting from blanks. Thus, classic sheet metal forming operations, such as deep drawing, are combined with bulk metal forming operations li

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Morano, Chiara, Ran Tao, Marco Alfano, and Gilles Lubineau. "Effect of Mechanical Pretreatments on Damage Mechanisms and Fracture Toughness in CFRP/Epoxy Joints." Materials 14, no. 6 (2021): 1512. http://dx.doi.org/10.3390/ma14061512.

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Adhesive bonding of carbon-fiber-reinforced polymers (CFRPs) is a key enabling technology for the assembly of lightweight structures. Surface pretreatment is necessary to remove contaminants related to material manufacturing and ensure bond reliability. The present experimental study focuses on the effect of mechanical abrasion on the damage mechanisms and fracture toughness of CFRP/epoxy joints. The analyzed CFRP plates were provided with a thin layer of surface epoxy matrix and featured enhanced sensitivity to surface preparation. Various degrees of morphological modification and fairly cont

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Du, Jun, Ke Peng Hou, and Wei Liang. "Experimental Research on Strength Characteristics of Bulky Rock Material with Different Coarse Grain Content in Waste Pile of Mine." Applied Mechanics and Materials 170-173 (May 2012): 295–300. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.295.

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Bulky rock material of waste pile was composed of discarded rock and soil which was blasted and stripped from stope. It was characterized by dispersibility, complexity and variability. Shear strength index of bulky rock material was the main basis for analyzing slope stability of the waste pile. After the study on bulky rock material with different coarse grain content by indoor direct shear test, the results indicated that there was no obvious peak strength during the shear process, and variation of the shear displacement was slight in initial horizontal loading stage. Horizontal loading incr

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Dremin, A. V., and V. S. Velikanov. "Setting a multi-criteria problem to analyze and forecast particle size distribution of blasted rock." Mining Industry Journal (Gornay Promishlennost), no. 5/2023 (November 15, 2023): 52–60. http://dx.doi.org/10.30686/1609-9192-2023-5-52-60.

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Changes in the mining and geological characteristics of solid mineral deposits, a sharp decrease in the ore grades in many ore fields as well as the intensification of surface mining methods define the need to develop scientific, theoretical and methodological foundations for improving the efficiency of the interaction between the technological elements within the Mine-to-Mill' (M2M) concept, which can be adapted to each specific mining operation and will help to streamline the operating costs. Drilling and blasting is the main technological operation to break the rock off the rock mass and cr

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Ramdan, Raden Dadan, Budi Prawara, Rochim Suratman, Ferdian Marta, and Ali Rinaldi. "The Effect of Substrate Pre-treatment on Hydroxy-apatite Coated Titanium Alloy by High-velocity Oxy-fuel Process." MECHANICAL 8, no. 1 (2017): 1. http://dx.doi.org/10.23960/mech.v8.i1.201701.

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In order to fully meet bio-compatibility requirement of titanium alloy as implant material, coating with hydroxyapatite (HA) is normally applied. The present research concerns on the effect of substrate pre-treatment on the coating of HA on titanium alloy by high-velocity oxy fuel process (HVOF). Before the coating, all samples were pre-treated by thermo-mechanical treatment in order to obtain fine grain structure. Three type of substrate pre-treatment is then applied on different substrates, including, sand-blasting, sand-blasting+etching, and sand-blasting+etching+CNT intermediate layer. Aft

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Kim, J. W., N. S. Covel, P. C. Guess, E. D. Rekow, and Y. Zhang. "Concerns of Hydrothermal Degradation in CAD/CAM Zirconia." Journal of Dental Research 89, no. 1 (2009): 91–95. http://dx.doi.org/10.1177/0022034509354193.

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Zirconia-based restorations are widely used in prosthetic dentistry; however, their susceptibility to hydrothermal degradation remains elusive. We hypothesized that CAD/CAM machining and subsequent surface treatments, i.e., grinding and/or grit-blasting, have marked effects on the hydrothermal degradation behavior of Y-TZP. CAD/CAM-machined Y-TZP plates (0.5 mm thick), both with and without subsequent grinding with various grit sizes or grit-blasting with airborne alumina particles, were subjected to accelerated aging tests in a steam autoclave. Results showed that the CAD/CAM-machined surface

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Mihailovic, Marija, Aleksandra Pataric, Zvonko Gulisija, Djordje Veljovic, and Djordje Janackovic. "Electrophoretically deposited nanosized hydroxyapatite coatings on 316LVM stainless steel for orthopaedic implants." Chemical Industry and Chemical Engineering Quarterly 17, no. 1 (2011): 45–52. http://dx.doi.org/10.2298/ciceq100326052m.

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Hydroxyapatite is widely used bioceramic material in implant coatings research because of its bioactive behavior when being deposited onto the metallic implant and compatibility to the human bones composition. The coating of nanosized hydroxyapatite was electrophoretically deposited on blasted surface of stainless steel 316LVM samples at constant voltage, for different deposition times and subsequently sintered in both, vacuum and argon atmosphere, at 1040?C and 1000?C, respectively. Although sintering temperatures needed to achieve highly dense coatings can cause HAp coating phase changes, th

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