$\hbox{BaHfO}_{3}$-Doped Thick $\hbox{YBa}_{2}\hbox{Cu}_{3}\hbox{O}_{7-\delta} $ Films on Highly Alloyed Textured Ni-W Tapes

YBa
₂
Cu
₃
O
_7-δ
(YBCO) films with a thickness of up to 2 μm containing nano-sized BaHfO
₃
(BHO) have been grown on biaxially textured metal tapes by pulsed laser deposition. Transmission electron microscopy revealed the inclusion of Y
₂
O
₃
platelets and rod-like BHO structures. A c-axis oriented growth of the YBCO layer and biaxial oriented incorporation of BHO is confirmed by X-Ray diffraction. BHO expands the c-axis of YBCO, flattens the surface of YBCO and densifies the films. Y
₂
O
₃
inclusions get smaller and finer distributed, possibly with a positive influence on pinning effects. A superconducting transition temperature T
_c
of about 89 K was determined, decreasing slightly with increasing BHO content. Transport current measurements in the maximum Lorentz force configuration showed an increased irreversibility field H
_irr
and higher pinning force density F
_p
with increasing BHO content in high magnetic fields.