. 2018 Sep 20;3(9):11477–11485. doi: 10.1021/acsomega.8b01602

Table 2. Calculated Elastic Stiffness Constants C_ij, Bulk Modulus B, Shear Modulus G, Young’s Modulus E, Poisson’s Ratio v, and Vickers Hardness H_v of the Sc–N System.

		ScN cubic	Sc₈N₇ monoclinic	ScN₃ triclinic	ScN₅ triclinic	ScN₅ monoclinic	Sc₄N₃ cubic
elastic stiffness C_ij constants	C₁₁	385.81	549.92	426.18	599.99	772.45	788.63
	C₂₂		498.73	443.61	457.08	821.69
	C₃₃		464.91	563.28	414.57	861.50
	C₄₄	163.74	162.13	138.72	215.40	426.77	165.11
	C₅₅		212.21	192.74	129.65	329.19
	C₆₆		159.67	240.07	237.03	311.42
	C₁₂	104.70	110.58	224.26	227.76	329.12	221.93
	C₁₃		124.52	137.47	266.51	373.19
	C₁₄			30.12	–179.03
	C₁₅		0.2770	32.47	42.87	109.77
	C₁₆			32.94	–125.22
	C₂₃		166.43	168.97	152.66	343.03
	C₂₄			7.5572	–16.25
	C₂₅		–0.071	–16.75	–53.96	–75.21
	C₂₆			133.77	–51.62
	C₃₄			80.56	–47.59
	C₃₅		–0.019	–8.31	–27.54	0.74
	C₃₆			29.81	31.63
	C₄₅			55.13	10.41
	C₄₆		0.002	8.91	34.17	145.83
	C₅₆			0.95	–21.99
B (GPa)		198.38	257.32	262.56	307.28	484.49	410.94
G (GPa)		154.46	178.44	154.53	171.4	269.94	205.33
E (GPa)		367.89	434.81	387.57	433.58	682.98	528.04
v		0.191	0.218	0.254	0.265	0.265	0.286
H_v (GPa)		25	24	17.5	17.4	23.6	17.0

Table 2. Calculated Elastic Stiffness Constants Cij, Bulk Modulus B, Shear Modulus G, Young’s Modulus E, Poisson’s Ratio v, and Vickers Hardness Hv of the Sc–N System.