Dell Latitude 7400 2-in-1 Service Manual

Properties
Table 3. Properties
Density 2.43 g/cm
Youngs Modulus 76.7 GPa
Poissons Ratio 0.21
Shear Modulus 31.7 GPa
Vickers Hardness (200 g load)
● Un-strengthened
● Strengthened
489 kgf/mm
2
596 kgf/mm
2
596 kgf/mm
2
Fracture Toughness 0.69 MPa m
0.5
Coefficient of Expansion (0 ˚C - 300 ˚C) 78.8 x 10
-7
/°C
Chemical Strengthening
Capability of >850MPa CS, at 50 µm Depth Of Layer(DOL)
Specifications subject to change
Optical
Table 4. Optical
Refractive Index (590 nm)
Core glass** 1.50
Compression layer 1.51
Photo-elastic constant 30.3 nm/cm/MPa
** Core index is used for FSM-based measurements since it is unaffected by ion-exchange conditions.
Chemical Durability
Durability is measured via weight loss per surface area after immersion in the solvents shown below. Values are highly dependent
upon actual testing conditions. Data reported is for Corning Gorilla Glass 5.
Table 5. Chemical Durability
Reagent Time Temperature (ºC)
Weight Loss (mg/cm2)
HCl - 5% 24 hrs 95 5.9
NH4F:HF - 10% 20 min 20 1.0
HF - 10% 20 min 20 25.2
NaOH - 5% 6 hrs 95 2.7
Technology and components 13

Dell Latitude 7400 2-in-1 Specifications

General

Storage	Up to 1TB PCIe NVMe SSD
Graphics	Intel UHD Graphics 620
Operating System	Windows 10 Pro
Processor	8th Generation Intel Core i5/i7
Display	14.0-inch FHD (1920 x 1080) Touchscreen
RAM	Up to 16GB
Battery	4-cell 52 Whr Integrated Battery
Weight	Starting at 1.36 kg (3.0 lbs)
Ports	1 x HDMI, 1 x microSD card reader, 1 x headphone/microphone combo jack
Wireless	Bluetooth 5.0
Dimensions	0.59 inches (14.89 mm)