Sharapova, who didn't lose a set in seven matches, was clearly determined that nothing would stop her after winning only three games against Serena Williams in last year's final.
She was over a shoulder problem that plagued her last year. She was hitting winners with regularity. Her focus never wavered, even when her usually dependable serve briefly let her down.
She wasn't as sharp as when she ended top-ranked Justine Henin's 32-match winning streak in the quarterfinals or beat No. 3 Jelena Jankovic in the semifinals. But there was no doubt she deserved to win.
"I did the things I needed to do in order to win the match," Sharapova said, making it sound a lot more simple than it was.
Ivanovic, who at 20 is the same age as Sharapova and will rise to No. 2 when the new rankings come out, was left to find a silver lining.
"I'm still young and I still think I have a lot of Grand Slam finals in front of me," she said. "It hurts a bit now, but I'm sure I can learn from it."
Now Serbia's hopes for a title here rest with No. 3 Novak Djokovic, who faces unseeded Jo-Wilfried Tsonga of France, the tournament's big surprise, in the men's final Sunday evening.
Jonathan Erlich and Andy Ram became the first Israeli doubles pairing to win a Grand Slam when they outlasted Michael Llodra and Arnaud Clement 7-5 7-6 (4) Saturday.
Sharapova's 2004 Wimbledon title made her only the second Russian woman to win a major
- just weeks after Anastasia Myskina captured the French Open.
Her win over Ivanovic was the fifth major by a Russian woman.
Sharapova first met King, winner of 39 singles and doubles Grand Slam titles, at a juniors tournament when she was 13 or 14.
"From that point on, she's just always been really supportive," Sharapova said. "She's always one of the first people to text me when either I'm having a tough moment or a great win."
She woke up to King's inspirational text message.
"I had those great words in my mind during the match," she said, adding that when it was over, she got another message: "Congratulations. You did great."
On a hot, mostly sunny day, Sharapova retreated to the shade behind the baselines between points. It was Australia Day, so organizers put small national flags at each seat, but there were plenty of Serbian and Russian flags, too.