| 摘要 |
PROBLEM TO BE SOLVED: To obtain a mechanoluminescent material with a high luminous intensi ty. SOLUTION: This mechanoluminescent material comprises a luminescent center consisting of a rare earth metal or a transition metal and a host material consisting of at least one oxide selected from among (A) an aluminousilicate represented by the formula: M<SP>1</SP>O-yAl<SB>2</SB>O<SB>3</SB>-zSiO<SB>2</SB>, (B) an aluminate represented by the formula: xM<SP>2</SP>O-yAl<SB>2</SB>O<SB>3</SB>, (C) a silicate represented by the formula: xM<SP>3</SP>O- ySiO<SB>2</SB>or Ba<SB>2</SB>MgSiO<SB>7</SB>, (D) a tantalate or niobate represented by the formula: xM<SP>4</SP>O-yM<SP>5</SP><SB>4</SB>O<SB>11</SB>, (E) a gallate represented by the formua: xM<SP>5</SP>O-yGa<SB>2</SB>O<SB>3</SB>, and ZrO<SB>2</SB>. In these formulas, M<SP>1</SP>, M<SP>2</SP>, M<SP>3</SP>, and M<SP>4</SP>are each Ca, Ba, or the like; M<SP>5</SP>is Ta or Nb; and (x), (y), and (z) are each 1 or higher. COPYRIGHT: (C)2003,JPO
|
