Diamond
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Recent papers in Diamond
A novel technique for synthesizing a diamond-like carbon (DLC) film by pulsed laser deposition (PLD) is proposed. In the technique, additional lasers irradiated the plume in order to increase the density of the ionic carbon. By... more
Detrital zircons more than 4 billion years old from the Jack Hills metasedimentary belt, Yilgarn craton, Western Australia, are the oldest identified fragments of the Earth's crust 1,2 and are unique in preserving information on the... more
The estimation of Quality of diamond plays a very important role in finding its price and add a market value. Quality of diamond is being estimated in the market today by just looking into the diamond thought naked or with a lens, but the... more
nature materials | VOL 3 | OCTOBER 2004 | www.nature.com/naturematerials I n the last decade we have witnessed a fast growth in the research, development and marketing of biosensors, although no clear decisions have been made in favour of... more
By measuring the drift velocity of electrons in diamond as a function of applied electric field, we demonstrate that ultra-pure diamond exhibits negative differential electron mobility in the [100] direction below 140 K. Negative... more
Aims: To evaluate the efficacy and safety of diamond burr superficial keratectomy in the treatment of recurrent corneal erosions. Methods: A retrospective review of 54 eyes (47 patients) with recurrent corneal erosions treated with... more
The effects of hydrostatic pressure upon (1) a segmented poly (ester urethane), (2) a hydrolytically degraded sample of the same polymer, and (3) models for the polyurethane and polyester segments in this polymer have been studied by... more
We describe an x-ray absorption method for in situ density measurement of non-crystalline materials in the diamond anvil cell using a monochromatic synchrotron x-ray microbeam. Sample thickness, which is indispensable in the absorption... more
The synthesis of new materials for thermal infrared (IR) detection has been an intensive research area in recent years. Among new semiconductor materials, synthetic diamond has the ability to function even under very high temperature... more
PIllole di diamante: Giallo, Grande e Misterioso, la Leggenda del "Fiorentino" Questa e' la storia del "Fiorentino" (ma anche noto come il Toscano, il Granduca di Toscana o il Giallo Austriaco), uno dei diamanti piu' grandi e riveriti del... more
Porcelain Adhesion Hydrofluoric acid Methylene chloride Hydrogen peroxide Strain energy release rate Surface roughness a b s t r a c t
Recent trials on diamond-like carbon (DLC) coated medical devices have indicated promise for blood interfacing applications. The literature is sparse regarding structural and compositional effects of DLC on cellular response. An important... more
Impregnated diamond cutting tools are processed by powder metallurgy techniques. In these tools, diamonds are used as abrasive particles embedded into a metal matrix. Some common examples of these tools are diamond cutting discs, crowns,... more
This paper reports the results of a two-step hot filament chemical vapor deposition method to improve the quality of diamond films. Diamond films were deposited on a Si(100) substrate having an area of 45 cm 2 and a thickness of 60 mm,... more
A cathodically pretreated boron-doped diamond electrode was used for the simultaneous anodic determination of ascorbic acid (AA) and caffeine (CAF) by differential pulse voltammetry. Linear calibration curves (r ¼ 0.999) were obtained... more
Having previously dominated diamond supply and exercised near total control over diamond distribution, the diamond industry market leader De Beers now accounts for just 40% of global diamond production and 45% of distribution. In the face... more
Objectives: The purpose of this study was (1) to analyze the influence of polishing time and press-on force on the surface gloss and roughness of dental materials by using a three-component rubber-based polishing system and to compare the... more
Statement of problem. Tooth preparation with a high-speed handpiece may cause thermal harm to the dental pulp.
People these days know the Universe as a Whole, because not knowing the edge between This and That. Its secret is the secret of a forgotten body, the seventh in the series of multifaceted as Life, Seven. We know six of it now. But the... more
The current paper gives an overview of the development of Raman spectrometry in gemmological laboratories. While before 1990s, no commercial gemmological laboratory possessed such an instrument, all larger international labs have acquired... more
It is a branch of physics which deals with property, geometry of crystals. It is also deals with the enumeration and classification of all types of crystals.
Diamonds High Pression High Temperature
Prognostication of the primary diamond host rocks such as kimberlites and lamproites is traditionally carried out by deploying proven techniques such as indicator (xenocryst) mineral chemistry and pressure-temperature estimates on... more
Although surface finish can be a critical variable in clinical performance, there is a dearth of information regarding surface characteristics of teeth prepared for artificial crowns. This study characterized teeth prepared for complete... more
Carbonados are aggregate polycrystalline diamonds and are found in placer deposits of the Central African Republic (CAR) and the Bahia Province of Brazil. Their origin is uncertain, but several mutually exclusive hypotheses have been... more
This review of the evolution of diamond cuts during the 16th to 18th centuries is illustrated with Portuguese jewellery and sacred objects from this period. We follow the evolution from point cuts already in existence prior to Portuguese... more
An investigation has been undertaken to study the compatibility of cutting materials in dry machining of aluminium and Al-Si alloys. Mono or multilayer coated carbide tools with a top coating of TiC, TiN, TiAlN, Al 2 O 3 , TiB 2 , MoS 2... more
This paper aims not only to correct misconceptions, but to summarise what is already known about the discovery of the Cullinan and the events that followed, and at the same time reveal some important and unexplored evidence that eluded... more
Paper presented as a lecture at the 10th Contact Day Jewish Studies on the Low Countries, organized by the Institute of Jewish Studies, University of Antwerp, May 16, 2017. Session 3: The Dutch "Diamond Jews" in Bergen-Belsen, Chair: Dr.... more
Effective use of rotary cutting burs and bonded, coated, and loose abrasives can greatly simplify and improve the effectiveness of finishing and polishing procedures. Fluted carbide finishing burs appear to be the optimal rotary... more
Attachment theory has been extremely successful at stimulating research on the formation and quality of emotional bonds and the complex interplay between individual-level and relationship-level processes in all phases of the lifespan . In... more
The user has requested enhancement of the downloaded file. All in-text references underlined in blue are added to the original document and are linked to publications on ResearchGate, letting you access and read them immediately. This... more
Heat sink is an essential component to nanoelectronics, microelectronics, and optoelectronics applications because it allows the thermal management of devices such as integrated circuits (ICs), microelectromechanical systems (MEMSs), and... more
Scale-up of anodic oxidation system is critical to the practical application of electrochemical treatment in biorefractory organic wastewater treatment. In this study, the scale-up of electrochemical flow system was investigated by... more
Hirashasan is the term used for governance of diamond mining and trade-with a small bureaucracy and an exclusive set of rules and regulations-by the district administration of Panna in the state of Madhya Pradesh in India. Diamond mining... more
Manganoan ilmenite was identified in Juina, Brazil kimberlitic rocks among other megacrysts. It forms oval, elongated, rimless grains comprising 8-30 wt.% of the heavy fraction. Internally the grains are homogeneous. The chemical... more
We have undertaken helium, neon and argon step-heating, isotopic analyses of eleven polycrystalline diamonds of known peridotite/eclogite paragenesis from the Jwaneng kimberlite pipe, Botswana. In contrast to the findings of crustal noble... more
Purpose: This study evaluated the effect of artificial saliva storage on the hardness, crack length, and fracture toughness of a glazed, polished, and bleached hydrothermal low-fusing glass-ceramic (Duceram LFC). Materials and Methods:... more
Early Proterozoic kimberlites of Karelia are among the most ancient diamond-bearing primary source rocks in the world. They compose the large (2.0 × 0.8 km) Kimozero body localized in the predicted Zaonezhskoe kimberlite field. The... more
Most studies of cavity preparation using Er:YAG lasers have employed permanent teeth. This study's purpose was to compare the cutting efficiency of an Er:YAG laser versus diamond burs in primary and permanent teeth in order to measure... more
The mineral waste from some mines has the capacity to trap and store CO 2 within secondary carbonate minerals via the process of silicate weathering. Nesquehonite [MgCO 3 3 3H 2 O] forms by weathering of Mg-silicate minerals in... more
a b s t r a c t Keywords: Brazing Diamond Residual stress Microstructure Shear strength