Powder neutron diffraction studies of three low thermal expansion phases in the NZP family: K0.5Nb0.5Ti1.5(PO4)3, Ba0.5Ti2(PO4)3 and Ca0.25Sr0.25Zr2(PO4)3

1999 ◽  
Vol 9 (10) ◽  
pp. 2631-2636 ◽  
Author(s):  
David A. Woodcock ◽  
Philip Lightfoot ◽  
Ron I. Smith
Keyword(s):  
Thermal Expansion ◽  
Neutron Diffraction ◽  
Powder Neutron Diffraction ◽  
Low Thermal Expansion

Neutron diffraction studies on the thermal expansion and anomalous mechanics in the perovskite-type [C(ND2)3]Me2+(DCOO)3 [Me = Cu, Mn, Co]

2018 ◽  
Vol 20 (25) ◽  
pp. 17059-17070 ◽  
Author(s):  
M. Viswanathan
Keyword(s):  
Thermal Expansion ◽  
Neutron Diffraction ◽  
Single Crystal ◽  
Thermomechanical Characteristics ◽  
Powder Neutron Diffraction ◽  
Type C ◽  
Perovskite Type

The thermomechanical characteristics of [C(ND2)3]Me2+(DCOO)3 [Me = Cu, Co, Mn] have been evaluated by single-crystal and powder neutron diffraction.

Powder neutron diffraction study of the thermal expansion of a K-substituted cordierite

1989 ◽  
Vol 24 (11) ◽  
pp. 3976-3983 ◽  
Author(s):  
D. Mercurio ◽  
P. Thomas ◽  
J. P. Mercurio ◽  
B. Frit ◽  
Y. H. Kim ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Powder Neutron Diffraction

Negative Thermal Expansion Behaviour in The NZP Phase NbTi(PO4)3

1998 ◽  
Vol 547 ◽  
Author(s):  
D. A. Woodcock ◽  
P. Lightfoot ◽  
R. I. Smith
Keyword(s):  
Thermal Expansion ◽  
Neutron Diffraction ◽  
Volume Expansion ◽  
Negative Thermal Expansion ◽  
Structural Data ◽  
Thermal Expansion Behaviour ◽  
Powder Neutron Diffraction ◽  
Positive Volume ◽  
The Difference ◽  
Expansion Behaviour

AbstractWe present new detailed structural data versus temperature on the Nasicon structured material NbTi(PO4)3 obtained from powder neutron diffraction studies. This material shows a significant volume contraction over the range 20°C < T < 700°C. αa varies between –4.34 and -0.11 × 10-6°C-1 and αc between 0.08 and 3.07 × 10-6°C-1 over this range. This behaviour contrasts with the case of NaTi2(PO4)3 (NaTP) which shows a positive volume expansion. The difference in this behaviour can be explained by the presence of filled MI sites in NaTP which are vacant in the case of NbTP.

Low temperature structural and thermal expansion studies on α-cristobalite type Al0.5Ga0.5PO4 by powder neutron diffraction

2005 ◽  
Vol 123 (2) ◽  
pp. 149-153 ◽  
Author(s):  
S.N. Achary ◽  
A.K. Tyagi ◽  
P.S.R. Krishna ◽  
A.B. Shinde ◽  
O.D. Jayakumar ◽  
...  
Keyword(s):  
Thermal Expansion ◽  
Low Temperature ◽  
Neutron Diffraction ◽  
Powder Neutron Diffraction
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