Read More
Date: 31-12-2018
![]()
Date: 5-12-2018
![]()
Date: 4-12-2018
![]() |
Molybdenum disulfide
Molybdenum disulfide, MoS2, forms a gray-black mass which is similar to graphite, both in appearance and to the touch. Like graphite MoS2 is widely used as solid lubricant. Molybdenum disulfide occurs in nature as molybdenite (crystalline) and as jordisite (amorphous). Metallic molybdenum is produced from molybdenite.
The lubrication properties are due to a layered structure of MoS2, where the molybdenum atoms are located between layers of sulfur atoms. The sheets of sulfur atoms exhibit only weak van der Waals interaction forces, resulting in a low coefficient of friction. MoS2 is diamagnetic and a semiconductor.
|
|
لخفض ضغط الدم.. دراسة تحدد "تمارين مهمة"
|
|
|
|
|
طال انتظارها.. ميزة جديدة من "واتساب" تعزز الخصوصية
|
|
|
|
|
مشاتل الكفيل تزيّن مجمّع أبي الفضل العبّاس (عليه السلام) بالورد استعدادًا لحفل التخرج المركزي
|
|
|