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Diamonds Shine in the Field of Smart Phones

1. Diamond tools applied in the mobile phone metal shell high light processing

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Now the mobile phone is more and more beautiful, many mobile phones have a high light effect, in which reveals a three-dimensional sense, and bring unlimited market opportunities to the mobile phone metal high light processing.

In high-speed processing, especially high-light processing diamond tools have unique advantages on non-ferrous metals :

(1)excellent thermal conductivity, in the processing can take away the heat, then you needn’t to use coolant.

(2)diamond tool on the non-ferrous metal affinity is particularly small, and non-ferrous metal friction coefficient is also small, not easy to stick knife, which is not easy to produce BUE, so the blade can always cut the workpiece and brightness can be guaranteed.

(3)diamond tools with lipophilic water resistance characteristics, remove debris smoothly, which to ensure a clean tool, sharp edges.


For example, the use of diamond cutting is the highlight of the iPhone chamfer.

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iPhone 5 much emphasizes on chamfer, in addition to the edge is not so uncomfortable with hands, the role of the first is to create a sense of cutting, this sense of cutting will make us feel iPhone 5 in our hands is more like a jewelry. The most important of diamond is the cutting process, and the cutting process is to create reflections, these reflections come from the matching of lines and chamfers. iPhone 5 in order to maximize the high light reflection, in almost all areas that not to be easily noticed, like the camera, metal button edge, data line interface, headphone holes are all used chamfer.


2.Nano-diamond has excellent performance on the lithium battery safety 

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Lithium batteries are widely used in mobile phones, laptops and other mobile devices. Due to short circuit, mobile equipment ignition and other dangerous events are increasing. The most well-known is the beginning of September 2016 Samsung mobile phone Note7 battery explosion, after the explosion, the US Federal Aviation Administration recommended that civil aviation passengers do not use the Note7 phone on the plane or charge for the phone. Japan, Singapore, Australia, Pakistan and other countries of the transport sector and airlines are also on the Note7 under the ban: including the ban on power and charging, do not accept consignment. Netizen dubbed the "explosives package" Samsung Note7 mobile phone explosion’s  "murder" is the battery defect. As the battery size and battery compartment does not match, there are manufacturing defects, resulting in overheating of the battery, which to cause fire explosion; or because due to welding defects of the battery, short-circuit phenomenon led to the explosion.


In the future, we will not worry about your mobile phone becoming a "explosive package". Recently, scientists from China and the United States to work together to complete a new study, found a more secure lithium battery formula, the study completed by the Chinese Tsinghua University, the United States Drexel University and other institutions. Researchers added nano-sized diamond particles in the lithium battery electrolyte to prevent the formation of the battery creating short-circuit deposits, to avoid short-circuit that cause the battery fire.


The researchers first added nano-diamond to the electrolyte solution, in the deposition process, the nano-diamond naturally be free together and the formation become a smooth surface. This characteristic plays an important role in eliminating the formation of dendrites. As the lithium ion easily adhered to the nano-diamond, the researchers use the electrode plating method, mixed with diamond electrolyte solution in the 100 charge cycle significantly reduced the formation of dendrites. The study found that this mixture of "additive" electrolyte can be prepared more secure lithium battery, and the energy density is greater, stable charge - discharge cycle up to 200 hours.


3.The application of diamond coating in the manufacture of smart phone screen

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In 2016 the United States Akhan company announced the preparation of a diamond-coated enhanced mobile phone screen glass, in which glass crack performance 4 times and anti-scratch performance 7 times higher than the leader of smartphone screen market Corning. Diamond coated glass screen is better than the current popular sapphire screen in the hardness performance.

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Miraj NCD with its cheap and fast diamond preparation process, achieving mass production, in which applied to the chemical vapor deposition (CVD) and microwave radiation technology, in the glass surface growth of the diamond layer. Just as this thin layer of diamond, Miraj NCD glass screen is full of hardness.


4.Non-metallic smart phone shell material

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Only concerning the shell materials, the smart phone industry is facing a variety of plastic, glass, metal and other options. Mobile phone shell and other consumer electronics, 3C communications products, both beautiful and practical and with complex curved surface. For consumers, the shell material is increasingly becoming an important factor in the choice of smart phones. With the arrival of the 5G era, the communication signal is more complex, NFC, wifl and wireless charging technology will be the standard for future mobile phones, metal phone shell for the adverse effects of signal shielding will be further amplified, diamond, ceramics and other non-metallic materials will usher in a major opportunity. Because the dielectric constant of zirconia is three times than the sapphire, the signal is more sensitive, especially for fingerprint identification cover, not subject to equipment restrictions, and the total cost is just sapphire’s 1/4. In the wireless charging, relative to the metal with plastic, more suitable for wireless charging.