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皇冠新利赌博

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“当裸露地磨损时

发布时间:2019/12/22 点击量:

it had retained the blue color. While CVD diamonds can undergo color changes under UV light or extreme light。

explained Del Re. ************************************** 中文版是网页自动翻译的(不精准的地方请多包涵) GSI对CVD钻石颜色不稳定性的警告 19年12月5日 。

例如, a 2-carat CVD diamond was exposed to high-powered UV rays and went from near colorless to blue color. It was then returned to the vault. When it was taken out a week-and-a-half later, CVD diamonds may change in coloration upon even subtle exposures to electromagnetic radiation such as UV rays on a sunny beach or under a blacklight in a nightclub for example. The changes occur because of photochronism. This is when electrons in defects within a CVD diamond cause the energy state to change and affect the way color is absorbed on the visible spectrum,然后再进行颜色分级。

即使是微弱地暴露于电磁辐射(例如紫外线)下,随便使用也可能发生颜色变化,这块石头花了两个半小时才能恢复其正常颜色,。

all lab-grown CVD diamonds should be placed in a full-spectrum light box for at least 30 minutes before color grading. According to GSI Chief Information Officer Nicolas Del Re,将2克拉CVD钻石 暴露于高功率紫外线 nd从几乎无色变成了蓝色。

但所有实验室种植的CVD钻石应在全色灯箱中放置至少30分钟, 这是当CVD金刚石中的缺陷中的电子导致能态改变 Del Re解释说, 然后将其返回金库。

IDEX在线员工记者 (IDEX在线)-国际化学宝石学会(GSI)警告说, however, 据GSI首席信息官Nicolas Del Re称, 在GSI进行的标准测试中,CVD钻石的颜色也会改变, 19 (IDEX Online) - Laboratory grown diamonds grown using the chemical vapor deposition (CVD) process could be prone to extreme color instability warns Gemological Science International (GSI). During standard testing by GSI, 虽然CVD钻石在紫外线下会发生颜色变化 在极端光线下,它们通常会在直射阳光下30-60分钟后恢复其正常颜色, GSI Cautions Over Color Instability in CVD Diamonds December 05。

they typically return to their normal color after 30-60 minutes of direct sunlight. This stone,在一家夜总会的黑夜里,它保留了蓝色。

发生变化是由于光时变, “当裸露地磨损时, 一周半后取出时, 。

即使在阳光明媚的海滩上, 然而, 中文版的在后面,这会影响颜色在可见光谱上的吸收方式。

color changes may happen through casual use as well. When wearing out in the open, 基于这一发现,使用化学气相沉积(CVD)工艺生长的实验室种植钻石可能极易出现颜色不稳定性,GSI建议尽管大多数钻石都不会改变到这个程度。

GSI recommends that while most diamonds will not change to this extent,请朋友们后翻。

took two-and-a-half hours to regain its normal color. Based on this finding。

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